Hi all,

We have a laptop (W10 64b Pro) where the wifi is logged in on our own
private network. It all worked well. But now the network center says all
of a sudden it's an unknown and public network, so file sharing,
connecting to shares in the network and remote access have become
impossible.
I logged off and on again, but it still says an unknown and public network.
How can I change this back to a local and private network?

Thanks in advance.

Fokke Nauta

On 10/1/2021 6:46 AM, Fokke Nauta wrote:
> Hi all,
>
> We have a laptop (W10 64b Pro) where the wifi is logged in on our own private network. It all worked well. But now the network center says all of a sudden it's an unknown and public network, so file sharing, connecting to shares in the network and remote access have become impossible.
> I logged off and on again, but it still says an unknown and public network.
> How can I change this back to a local and private network?
>
> Thanks in advance.
>
> Fokke Nauta

X---broadband modem ------------------ one computer @ 1.2.3.4 [This is public]

X---broadband modem --- NAT Router --- one or more computers @ 192.168.1.2 , 192.168.1.3

To me, one of the detections for public/private, is whether the
address is route-able or not. The 192.168.1.2 is not route able and is
a part of NAT (Network Address Translation). That's for IPV4 addresses.

"RFC 1918 allocates the following for private address space:

10.0.0.0/8
172.16.0.0/12
192.168.0.0/16 [ = 192.168.x.x ]
"

IPV6 is a different animal, in terms of whether NAT is used
or is popular. You might well need a web page with the
secret decoder ring, to figure out what the number means.

To gather information about the addresses the computer
uses, you can try "ipconfig".

Paul

Fokke Nauta wrote:
> Hi all,
>
> We have a laptop (W10 64b Pro) where the wifi is logged in on our own
> private network. It all worked well. But now the network center says all
> of a sudden it's an unknown and public network, so file sharing,
> connecting to shares in the network and remote access have become
> impossible.
> I logged off and on again, but it still says an unknown and public network.
> How can I change this back to a local and private network?
>
> Thanks in advance.
>
> Fokke Nauta

Settings > Network & Internet > Status < Click "Properties" on adapter
Network Profile > Public => Private

--
Take care,

Jonathan
-------------------
LITTLE WORKS STUDIO
http://www.LittleWorksStudio.com

On 01/10/2021 16:14, Jonathan N. Little wrote:
> Fokke Nauta wrote:
>> Hi all,
>>
>> We have a laptop (W10 64b Pro) where the wifi is logged in on our own
>> private network. It all worked well. But now the network center says all
>> of a sudden it's an unknown and public network, so file sharing,
>> connecting to shares in the network and remote access have become
>> impossible.
>> I logged off and on again, but it still says an unknown and public network.
>> How can I change this back to a local and private network?
>>
>> Thanks in advance.
>>
>> Fokke Nauta
>
> Settings > Network & Internet > Status < Click "Properties" on adapter
> Network Profile > Public => Private
>

Thanks, Jonathan. That will do the trick. I will do it tomorrow and will
come back.

Fokke

On 01/10/2021 14:07, Paul wrote:
> On 10/1/2021 6:46 AM, Fokke Nauta wrote:
>> Hi all,
>>
>> We have a laptop (W10 64b Pro) where the wifi is logged in on our own
>> private network. It all worked well. But now the network center says
>> all of a sudden it's an unknown and public network, so file sharing,
>> connecting to shares in the network and remote access have become
>> impossible.
>> I logged off and on again, but it still says an unknown and public
>> network.
>> How can I change this back to a local and private network?
>>
>> Thanks in advance.
>>
>> Fokke Nauta
>
>   X---broadband modem ------------------ one computer @ 1.2.3.4   [This
> is public]
>
>   X---broadband modem --- NAT Router --- one or more computers @
> 192.168.1.2 , 192.168.1.3
>
> To me, one of the detections for public/private, is whether the
> address is route-able or not. The 192.168.1.2 is not route able and is
> a part of NAT (Network Address Translation). That's for IPV4 addresses.
>
>   "RFC 1918 allocates the following for private address space:
>
>       10.0.0.0/8
>       172.16.0.0/12
>       192.168.0.0/16   [ = 192.168.x.x ]
>   "
>
> IPV6 is a different animal, in terms of whether NAT is used
> or is popular. You might well need a web page with the
> secret decoder ring, to figure out what the number means.
>
> To gather information about the addresses the computer
> uses, you can try "ipconfig".
>
>    Paul
>

Hi Paul,

All systems in our network - the laptop as well - get their fixed IP
address from the DHCP server, based on their MAC addresses.

Fokke

On 01/10/2021 20.28, Fokke Nauta wrote:
> On 01/10/2021 14:07, Paul wrote:
>> On 10/1/2021 6:46 AM, Fokke Nauta wrote:
>>> Hi all,
>>>
>>> We have a laptop (W10 64b Pro) where the wifi is logged in on our own
>>> private network. It all worked well. But now the network center says
>>> all of a sudden it's an unknown and public network, so file sharing,
>>> connecting to shares in the network and remote access have become
>>> impossible.
>>> I logged off and on again, but it still says an unknown and public
>>> network.
>>> How can I change this back to a local and private network?
>>>
>>> Thanks in advance.
>>>
>>> Fokke Nauta
>>
>>    X---broadband modem ------------------ one computer @ 1.2.3.4  
>> [This is public]
>>
>>    X---broadband modem --- NAT Router --- one or more computers @
>> 192.168.1.2 , 192.168.1.3
>>
>> To me, one of the detections for public/private, is whether the
>> address is route-able or not. The 192.168.1.2 is not route able and is
>> a part of NAT (Network Address Translation). That's for IPV4 addresses.
>>
>>    "RFC 1918 allocates the following for private address space:
>>
>>        10.0.0.0/8
>>        172.16.0.0/12
>>        192.168.0.0/16   [ = 192.168.x.x ]
>>    "
>>
>> IPV6 is a different animal, in terms of whether NAT is used
>> or is popular. You might well need a web page with the
>> secret decoder ring, to figure out what the number means.
>>
>> To gather information about the addresses the computer
>> uses, you can try "ipconfig".
>>
>>     Paul
>>
>
> Hi Paul,
>
> All systems in our network - the laptop as well - get their fixed IP
> address from the DHCP server, based on their MAC addresses.

But in what range?

--
Cheers,
Carlos E.R.

On 10/1/21 11:26, Fokke Nauta wrote:
> On 01/10/2021 16:14, Jonathan N. Little wrote:
>> Fokke Nauta wrote:
>>> Hi all,
>>>
>>> We have a laptop (W10 64b Pro) where the wifi is logged in on our own
>>> private network. It all worked well. But now the network center says all
>>> of a sudden it's an unknown and public network, so file sharing,
>>> connecting to shares in the network and remote access have become
>>> impossible.
>>> I logged off and on again, but it still says an unknown and public
>>> network.
>>> How can I change this back to a local and private network?
>>>
>>> Thanks in advance.
>>>
>>> Fokke Nauta
>>
>> Settings > Network & Internet > Status < Click "Properties" on adapter
>> Network Profile > Public => Private
>>
>
> Thanks, Jonathan. That will do the trick. I will do it tomorrow and will
> come back.
>
> Fokke

Hi Fokke,

I see this problem all the time. Drives
small businesses doing file sharing nuts.

Jonathan's directions should work perfectly.

-T

On 01/10/2021 23.09, T wrote:
> I see this problem all the time.  Drives
> small businesses doing file sharing nuts.

Not really enough - just consider all the data leaks and "kidnaping" of
machines for cryptocoins that go on...

--
Cheers,
Carlos E.R.

On 10/1/21 18:16, Carlos E. R. wrote:
> On 01/10/2021 23.09, T wrote:
>> I see this problem all the time.  Drives
>> small businesses doing file sharing nuts.
>
> Not really enough - just consider all the data leaks and "kidnaping" of
> machines for cryptocoins that go on...
>
Some W10 update flips everyone over to public network

On 01/10/2021 21:18, Carlos E. R. wrote:
> On 01/10/2021 20.28, Fokke Nauta wrote:
>> On 01/10/2021 14:07, Paul wrote:
>>> On 10/1/2021 6:46 AM, Fokke Nauta wrote:
>>>> Hi all,
>>>>
>>>> We have a laptop (W10 64b Pro) where the wifi is logged in on our own
>>>> private network. It all worked well. But now the network center says
>>>> all of a sudden it's an unknown and public network, so file sharing,
>>>> connecting to shares in the network and remote access have become
>>>> impossible.
>>>> I logged off and on again, but it still says an unknown and public
>>>> network.
>>>> How can I change this back to a local and private network?
>>>>
>>>> Thanks in advance.
>>>>
>>>> Fokke Nauta
>>>
>>>    X---broadband modem ------------------ one computer @ 1.2.3.4
>>> [This is public]
>>>
>>>    X---broadband modem --- NAT Router --- one or more computers @
>>> 192.168.1.2 , 192.168.1.3
>>>
>>> To me, one of the detections for public/private, is whether the
>>> address is route-able or not. The 192.168.1.2 is not route able and is
>>> a part of NAT (Network Address Translation). That's for IPV4 addresses.
>>>
>>>    "RFC 1918 allocates the following for private address space:
>>>
>>>        10.0.0.0/8
>>>        172.16.0.0/12
>>>        192.168.0.0/16   [ = 192.168.x.x ]
>>>    "
>>>
>>> IPV6 is a different animal, in terms of whether NAT is used
>>> or is popular. You might well need a web page with the
>>> secret decoder ring, to figure out what the number means.
>>>
>>> To gather information about the addresses the computer
>>> uses, you can try "ipconfig".
>>>
>>>     Paul
>>>
>>
>> Hi Paul,
>>
>> All systems in our network - the laptop as well - get their fixed IP
>> address from the DHCP server, based on their MAC addresses.
>
> But in what range?
>

192.168.1.140 - 192.168.1.180

Fokke

On Fri, 1 Oct 2021 21:18:45 +0200, "Carlos E. R." <robin_listas@es.invalid>
wrote:

>On 01/10/2021 20.28, Fokke Nauta wrote:
>> On 01/10/2021 14:07, Paul wrote:
>>> On 10/1/2021 6:46 AM, Fokke Nauta wrote:
>>>> Hi all,
>>>>
>>>> We have a laptop (W10 64b Pro) where the wifi is logged in on our own
>>>> private network. It all worked well. But now the network center says
>>>> all of a sudden it's an unknown and public network, so file sharing,
>>>> connecting to shares in the network and remote access have become
>>>> impossible.
>>>> I logged off and on again, but it still says an unknown and public
>>>> network.
>>>> How can I change this back to a local and private network?
>>>>
>>>> Thanks in advance.
>>>>
>>>> Fokke Nauta
>>>
>>>    X---broadband modem ------------------ one computer @ 1.2.3.4  
>>> [This is public]
>>>
>>>    X---broadband modem --- NAT Router --- one or more computers @
>>> 192.168.1.2 , 192.168.1.3
>>>
>>> To me, one of the detections for public/private, is whether the
>>> address is route-able or not. The 192.168.1.2 is not route able and is
>>> a part of NAT (Network Address Translation). That's for IPV4 addresses.
>>>
>>>    "RFC 1918 allocates the following for private address space:
>>>
>>>        10.0.0.0/8
>>>        172.16.0.0/12
>>>        192.168.0.0/16   [ = 192.168.x.x ]
>>>    "
>>>
>>> IPV6 is a different animal, in terms of whether NAT is used
>>> or is popular. You might well need a web page with the
>>> secret decoder ring, to figure out what the number means.
>>>
>>> To gather information about the addresses the computer
>>> uses, you can try "ipconfig".
>>>
>>>     Paul
>>>
>>
>> Hi Paul,
>>
>> All systems in our network - the laptop as well - get their fixed IP
>> address from the DHCP server, based on their MAC addresses.
>
>But in what range?

That reminds me of a time when I casually mentioned to a coworker that you
can use a routable IP scheme behind a NAT router. You don't have to use
RFC1918 addresses. I thought his head was going to explode but he
eventually got it. :-)

On 10/2/2021 2:02 PM, Char Jackson wrote:
> On Fri, 1 Oct 2021 21:18:45 +0200, "Carlos E. R." <robin_listas@es.invalid>
> wrote:
>
>> On 01/10/2021 20.28, Fokke Nauta wrote:
>>> On 01/10/2021 14:07, Paul wrote:
>>>> On 10/1/2021 6:46 AM, Fokke Nauta wrote:
>>>>> Hi all,
>>>>>
>>>>> We have a laptop (W10 64b Pro) where the wifi is logged in on our own
>>>>> private network. It all worked well. But now the network center says
>>>>> all of a sudden it's an unknown and public network, so file sharing,
>>>>> connecting to shares in the network and remote access have become
>>>>> impossible.
>>>>> I logged off and on again, but it still says an unknown and public
>>>>> network.
>>>>> How can I change this back to a local and private network?
>>>>>
>>>>> Thanks in advance.
>>>>>
>>>>> Fokke Nauta
>>>>
>>>>    X---broadband modem ------------------ one computer @ 1.2.3.4
>>>> [This is public]
>>>>
>>>>    X---broadband modem --- NAT Router --- one or more computers @
>>>> 192.168.1.2 , 192.168.1.3
>>>>
>>>> To me, one of the detections for public/private, is whether the
>>>> address is route-able or not. The 192.168.1.2 is not route able and is
>>>> a part of NAT (Network Address Translation). That's for IPV4 addresses.
>>>>
>>>>    "RFC 1918 allocates the following for private address space:
>>>>
>>>>        10.0.0.0/8
>>>>        172.16.0.0/12
>>>>        192.168.0.0/16   [ = 192.168.x.x ]
>>>>    "
>>>>
>>>> IPV6 is a different animal, in terms of whether NAT is used
>>>> or is popular. You might well need a web page with the
>>>> secret decoder ring, to figure out what the number means.
>>>>
>>>> To gather information about the addresses the computer
>>>> uses, you can try "ipconfig".
>>>>
>>>>     Paul
>>>>
>>>
>>> Hi Paul,
>>>
>>> All systems in our network - the laptop as well - get their fixed IP
>>> address from the DHCP server, based on their MAC addresses.
>>
>> But in what range?
>
> That reminds me of a time when I casually mentioned to a coworker that you
> can use a routable IP scheme behind a NAT router. You don't have to use
> RFC1918 addresses. I thought his head was going to explode but he
> eventually got it. :-)
>

But that address has to come from somewhere, and for the home users
here, Internet addresses aren't just lying around on the floor
next to the computer :-)

Whereas there is a high probability of using a 192.168.x.x address
on IPV4, in a home situation. Although I think there was at least
one individual who was connected to teh Internet here, with just
a broadband modem and one computer (no router). That could happen
in the old days, because the first ADSL boxen were modem-only ones.

I've never taken that much interest in the public versus private,
as once set, it seemed to behave itself. I don't think I've ever
been in a wrestling match with it. But bugs are always just
around the corner on modern software, just as a hole could
open in the floor next to my computer desk and I could fall
in.

Paul

On Sat, 2 Oct 2021 15:52:25 -0400, Paul <nospam@needed.invalid> wrote:

>On 10/2/2021 2:02 PM, Char Jackson wrote:
>> On Fri, 1 Oct 2021 21:18:45 +0200, "Carlos E. R." <robin_listas@es.invalid>
>> wrote:
>>
>>> On 01/10/2021 20.28, Fokke Nauta wrote:
>>>> On 01/10/2021 14:07, Paul wrote:
>>>>> On 10/1/2021 6:46 AM, Fokke Nauta wrote:
>>>>>> Hi all,
>>>>>>
>>>>>> We have a laptop (W10 64b Pro) where the wifi is logged in on our own
>>>>>> private network. It all worked well. But now the network center says
>>>>>> all of a sudden it's an unknown and public network, so file sharing,
>>>>>> connecting to shares in the network and remote access have become
>>>>>> impossible.
>>>>>> I logged off and on again, but it still says an unknown and public
>>>>>> network.
>>>>>> How can I change this back to a local and private network?
>>>>>>
>>>>>> Thanks in advance.
>>>>>>
>>>>>> Fokke Nauta
>>>>>
>>>>>    X---broadband modem ------------------ one computer @ 1.2.3.4
>>>>> [This is public]
>>>>>
>>>>>    X---broadband modem --- NAT Router --- one or more computers @
>>>>> 192.168.1.2 , 192.168.1.3
>>>>>
>>>>> To me, one of the detections for public/private, is whether the
>>>>> address is route-able or not. The 192.168.1.2 is not route able and is
>>>>> a part of NAT (Network Address Translation). That's for IPV4 addresses.
>>>>>
>>>>>    "RFC 1918 allocates the following for private address space:
>>>>>
>>>>>        10.0.0.0/8
>>>>>        172.16.0.0/12
>>>>>        192.168.0.0/16   [ = 192.168.x.x ]
>>>>>    "
>>>>>
>>>>> IPV6 is a different animal, in terms of whether NAT is used
>>>>> or is popular. You might well need a web page with the
>>>>> secret decoder ring, to figure out what the number means.
>>>>>
>>>>> To gather information about the addresses the computer
>>>>> uses, you can try "ipconfig".
>>>>>
>>>>>     Paul
>>>>>
>>>>
>>>> Hi Paul,
>>>>
>>>> All systems in our network - the laptop as well - get their fixed IP
>>>> address from the DHCP server, based on their MAC addresses.
>>>
>>> But in what range?
>>
>> That reminds me of a time when I casually mentioned to a coworker that you
>> can use a routable IP scheme behind a NAT router. You don't have to use
>> RFC1918 addresses. I thought his head was going to explode but he
>> eventually got it. :-)
>>
>
>But that address has to come from somewhere, and for the home users
>here, Internet addresses aren't just lying around on the floor
>next to the computer :-)

Since the scenario here is that you're behind a NAT router, you can use any
IP address subnet, routable or not, already in use on the Internet or not.
The NAT function guarantees there will be no address collisions with regard
to the greater Internet. The downside comes when you want to access an
Internet site that has an address that falls within your funky LAN scope.
You won't be able to get there because your PC will take a look at the
destination I and say, "hey, that's local, let's ARP for the MAC". Other
than that, it works fine.

>Whereas there is a high probability of using a 192.168.x.x address
>on IPV4, in a home situation. Although I think there was at least
>one individual who was connected to teh Internet here, with just
>a broadband modem and one computer (no router). That could happen
>in the old days, because the first ADSL boxen were modem-only ones.

In my travels, I mostly see LANs that use the 192.168/16 range, and a much
smaller number that use the 10/8 range. I rarely see anyone using the
172.16/16 range. They'd all work equally well on a home LAN, but most home
routers come preconfigured to use 192.168.x.x and people seem to just leave
it there.

>I've never taken that much interest in the public versus private,
>as once set, it seemed to behave itself. I don't think I've ever
>been in a wrestling match with it. But bugs are always just
>around the corner on modern software, just as a hole could
>open in the floor next to my computer desk and I could fall
>in.

Shared folders seem to be the big complaint when a home network gets
changed to Public.

On 02/10/2021 09.00, Fokke Nauta wrote:
> On 01/10/2021 21:18, Carlos E. R. wrote:
>> On 01/10/2021 20.28, Fokke Nauta wrote:
>>> On 01/10/2021 14:07, Paul wrote:
....
>>> Hi Paul,
>>>
>>> All systems in our network - the laptop as well - get their fixed IP
>>> address from the DHCP server, based on their MAC addresses.
>>
>> But in what range?
>>
>
> 192.168.1.140 - 192.168.1.180

Ok, yes, that's a private LAN range.

--
Cheers,
Carlos E.R.

On 02/10/2021 04.27, T wrote:
> On 10/1/21 18:16, Carlos E. R. wrote:
>> On 01/10/2021 23.09, T wrote:
>>> I see this problem all the time.  Drives
>>> small businesses doing file sharing nuts.
>>
>> Not really enough - just consider all the data leaks and "kidnaping" of
>> machines for cryptocoins that go on...
>>
>
> Some W10 update flips everyone over to public network

Well, if it works and they don't notice, good.

If it doesn't work, they can change it back manually.

>:-P

I usually set the laptops of people I maintain to public. They are going
to move around from home to workplace or school, with networks that
could be in fact hostile, so better be safe, no reason for them to open
to sharing files with the outside places.

Seems to work.

--
Cheers,
Carlos E.R.

On 10/2/21 17:17, Carlos E. R. wrote:
> On 02/10/2021 04.27, T wrote:
>> On 10/1/21 18:16, Carlos E. R. wrote:
>>> On 01/10/2021 23.09, T wrote:
>>>> I see this problem all the time.  Drives
>>>> small businesses doing file sharing nuts.
>>>
>>> Not really enough - just consider all the data leaks and "kidnaping" of
>>> machines for cryptocoins that go on...
>>>
>>
>> Some W10 update flips everyone over to public network
>
> Well, if it works and they don't notice, good.
Oh some of them did notice!
>
> If it doesn't work, they can change it back manually.
Or call me.
>
>> :-P
>
>
> I usually set the laptops of people I maintain to public. They are going
> to move around from home to workplace or school, with networks that
> could be in fact hostile, so better be safe, no reason for them to open
> to sharing files with the outside places.
>
> Seems to work.
Well stated.

On 01/10/2021 16:14, Jonathan N. Little wrote:
> Fokke Nauta wrote:
>> Hi all,
>>
>> We have a laptop (W10 64b Pro) where the wifi is logged in on our own
>> private network. It all worked well. But now the network center says all
>> of a sudden it's an unknown and public network, so file sharing,
>> connecting to shares in the network and remote access have become
>> impossible.
>> I logged off and on again, but it still says an unknown and public network.
>> How can I change this back to a local and private network?
>>
>> Thanks in advance.
>>
>> Fokke Nauta
>
> Settings > Network & Internet > Status < Click "Properties" on adapter
> Network Profile > Public => Private
>

I tried it, but cannot find the item Public.
On Properties there are the following issues:
(Translated from Dutch)
- Automatic connection
- Randon hardware adresses
- Connection with limited data
- IP settings
- Properties

But no Public.

Fokke

On 01/10/2021 23:09, T wrote:
> On 10/1/21 11:26, Fokke Nauta wrote:
>> On 01/10/2021 16:14, Jonathan N. Little wrote:
>>> Fokke Nauta wrote:
>>>> Hi all,
>>>>
>>>> We have a laptop (W10 64b Pro) where the wifi is logged in on our own
>>>> private network. It all worked well. But now the network center says
>>>> all
>>>> of a sudden it's an unknown and public network, so file sharing,
>>>> connecting to shares in the network and remote access have become
>>>> impossible.
>>>> I logged off and on again, but it still says an unknown and public
>>>> network.
>>>> How can I change this back to a local and private network?
>>>>
>>>> Thanks in advance.
>>>>
>>>> Fokke Nauta
>>>
>>> Settings > Network & Internet > Status < Click "Properties" on adapter
>>> Network Profile > Public => Private
>>>
>>
>> Thanks, Jonathan. That will do the trick. I will do it tomorrow and
>> will come back.
>>
>> Fokke
>
> Hi Fokke,
>
> I see this problem all the time.  Drives
> small businesses doing file sharing nuts.
>
> Jonathan's directions should work perfectly.
>
> -T

Hi,

I tried it, but can't find the issue Public.

Fokke

On 10/3/21 00:55, Fokke Nauta wrote:
> On 01/10/2021 23:09, T wrote:
>> On 10/1/21 11:26, Fokke Nauta wrote:
>>> On 01/10/2021 16:14, Jonathan N. Little wrote:
>>>> Fokke Nauta wrote:
>>>>> Hi all,
>>>>>
>>>>> We have a laptop (W10 64b Pro) where the wifi is logged in on our own
>>>>> private network. It all worked well. But now the network center
>>>>> says all
>>>>> of a sudden it's an unknown and public network, so file sharing,
>>>>> connecting to shares in the network and remote access have become
>>>>> impossible.
>>>>> I logged off and on again, but it still says an unknown and public
>>>>> network.
>>>>> How can I change this back to a local and private network?
>>>>>
>>>>> Thanks in advance.
>>>>>
>>>>> Fokke Nauta
>>>>
>>>> Settings > Network & Internet > Status < Click "Properties" on adapter
>>>> Network Profile > Public => Private
>>>>
>>>
>>> Thanks, Jonathan. That will do the trick. I will do it tomorrow and
>>> will come back.
>>>
>>> Fokke
>>
>> Hi Fokke,
>>
>> I see this problem all the time.  Drives
>> small businesses doing file sharing nuts.
>>
>> Jonathan's directions should work perfectly.
>>
>> -T
>
> Hi,
>
> I tried it, but can't find the issue Public.
>
> Fokke

Hi Fokke,

Try my notes:

-T

Windows: Change Public to Private network

Reference(s):
https://www.itechtics.com/change-network-type-windows-10/
https://www.online-tech-tips.com/windows-10/change-from-public-to-private-network-in-windows-7-8-10/

Windows 7:
--> Network & Sharing Center
--> click on Public or Private under the icon for the adapter under
"View your active networks"

Windows 10:

Before 1909:
--> Settings
--> Network & Internet
--> Ethernet or WiFi (left column)

1909+:
--> Settings
--> Network & Internet
--> Status (left column) (NOT ETHERNET !!!!!)
--> Properties (button, under the label "Ethernet")

Or,

--> regedit
--> HKEY_LOCAL_MACHINE
--> SOFTWARE
--> Microsoft
--> Windows NT
--> CurrentVersion
--> NetworkList
--> Profiles
Dig out your network adapter from the list of
profiles (GUIDs)
--> Category (DWORD)
0 = Public network
1 = Private network
2 = for Domain network
--> reboot

Fokke Nauta wrote:
> On 01/10/2021 16:14, Jonathan N. Little wrote:
>> Fokke Nauta wrote:
>>> Hi all,
>>>
>>> We have a laptop (W10 64b Pro) where the wifi is logged in on our own
>>> private network. It all worked well. But now the network center says all
>>> of a sudden it's an unknown and public network, so file sharing,
>>> connecting to shares in the network and remote access have become
>>> impossible.
>>> I logged off and on again, but it still says an unknown and public
>>> network.
>>> How can I change this back to a local and private network?
>>>
>>> Thanks in advance.
>>>
>>> Fokke Nauta
>>
>> Settings > Network & Internet > Status < Click "Properties" on adapter
>> Network Profile > Public => Private
>>
>
> I tried it, but cannot find the item Public.
> On Properties there are the following issues:
> (Translated from Dutch)
> - Automatic connection
> - Randon hardware adresses
> - Connection with limited data
> - IP settings
> - Properties
>
> But no Public.
>

If this is WiFi not Ethernet then [In MS fashion] the setting is
accessed in a different place:

Down in the taskbar tray click Network icon locate connected WiFi
connection and click Properties. Right near top is is Network profile
and Public|Private option

--
Take care,

Jonathan
-------------------
LITTLE WORKS STUDIO
http://www.LittleWorksStudio.com

On 10/3/2021 5:24 AM, Jonathan N. Little wrote:
> Fokke Nauta wrote:
>> On 01/10/2021 16:14, Jonathan N. Little wrote:
>>> Fokke Nauta wrote:
>>>> Hi all,
>>>>
>>>> We have a laptop (W10 64b Pro) where the wifi is logged in on our own
>>>> private network. It all worked well. But now the network center says all
>>>> of a sudden it's an unknown and public network, so file sharing,
>>>> connecting to shares in the network and remote access have become
>>>> impossible.
>>>> I logged off and on again, but it still says an unknown and public
>>>> network.
>>>> How can I change this back to a local and private network?
>>>>
>>>> Thanks in advance.
>>>>
>>>> Fokke Nauta
>>>
>>> Settings > Network & Internet > Status < Click "Properties" on adapter
>>> Network Profile > Public => Private
>>>
>>
>> I tried it, but cannot find the item Public.
>> On Properties there are the following issues:
>> (Translated from Dutch)
>> - Automatic connection
>> - Randon hardware adresses
>> - Connection with limited data
>> - IP settings
>> - Properties
>>
>> But no Public.
>>
>
> If this is WiFi not Ethernet then [In MS fashion] the setting is
> accessed in a different place:
>
> Down

....or up, or on the left, or on the right.

The task bar is on the bottom of the screen by default, but it can be on
the four sides of the screen.

> in the taskbar tray click Network icon locate connected WiFi
> connection and click Properties. Right near top is is Network profile
> and Public|Private option
>
>
>

--
Ken

Ken Blake wrote:
> On 10/3/2021 5:24 AM, Jonathan N. Little wrote:
>> Fokke Nauta wrote:
>>> On 01/10/2021 16:14, Jonathan N. Little wrote:
>>>> Fokke Nauta wrote:
>>>>> Hi all,
>>>>>
>>>>> We have a laptop (W10 64b Pro) where the wifi is logged in on our own
>>>>> private network. It all worked well. But now the network center
>>>>> says all
>>>>> of a sudden it's an unknown and public network, so file sharing,
>>>>> connecting to shares in the network and remote access have become
>>>>> impossible.
>>>>> I logged off and on again, but it still says an unknown and public
>>>>> network.
>>>>> How can I change this back to a local and private network?
>>>>>
>>>>> Thanks in advance.
>>>>>
>>>>> Fokke Nauta
>>>>
>>>> Settings > Network & Internet > Status < Click "Properties" on adapter
>>>> Network Profile > Public => Private
>>>>
>>>
>>> I tried it, but cannot find the item Public.
>>> On Properties there are the following issues:
>>> (Translated from Dutch)
>>> - Automatic connection
>>> - Randon hardware adresses
>>> - Connection with limited data
>>> - IP settings
>>> - Properties
>>>
>>> But no Public.
>>>
>>
>> If this is WiFi not Ethernet then [In MS fashion] the setting is
>> accessed in a different place:
>>
>> Down
>
> ...or up, or on the left, or on the right.
>
> The task bar is on the bottom of the screen by default, but it can be on
> the four sides of the screen.
>

In Windows 10 ;-) But yes, simplest to use default when describing steps
for configuration. And Windows fans scoff at us Linux users' command
line instructions...

>
>> in the taskbar tray click Network icon locate connected WiFi
>> connection and click Properties. Right near top is is Network profile
>> and Public|Private option
>>
>>
>>
>
>

--
Take care,

Jonathan
-------------------
LITTLE WORKS STUDIO
http://www.LittleWorksStudio.com

On 10/3/2021 8:24 AM, Jonathan N. Little wrote:
> Fokke Nauta wrote:
>> On 01/10/2021 16:14, Jonathan N. Little wrote:
>>> Fokke Nauta wrote:
>>>> Hi all,
>>>>
>>>> We have a laptop (W10 64b Pro) where the wifi is logged in on our own
>>>> private network. It all worked well. But now the network center says all
>>>> of a sudden it's an unknown and public network, so file sharing,
>>>> connecting to shares in the network and remote access have become
>>>> impossible.
>>>> I logged off and on again, but it still says an unknown and public
>>>> network.
>>>> How can I change this back to a local and private network?
>>>>
>>>> Thanks in advance.
>>>>
>>>> Fokke Nauta
>>>
>>> Settings > Network & Internet > Status < Click "Properties" on adapter
>>> Network Profile > Public => Private
>>>
>>
>> I tried it, but cannot find the item Public.
>> On Properties there are the following issues:
>> (Translated from Dutch)
>> - Automatic connection
>> - Randon hardware adresses
>> - Connection with limited data
>> - IP settings
>> - Properties
>>
>> But no Public.
>>
>
> If this is WiFi not Ethernet then [In MS fashion] the setting is
> accessed in a different place:
>
> Down in the taskbar tray click Network icon locate connected WiFi
> connection and click Properties. Right near top is is Network profile
> and Public|Private option

In a multi-path world, there is also

Settings : Wifi , click named item providing your Wifi

https://www.tenforums.com/attachments/tutorials/216617d1544282211-set-network-location-private-public-domain-windows-10-a-network_location_wi-fi_settings-1.png

Then this appears, with Public/Private choice.

https://www.tenforums.com/attachments/tutorials/216618d1544282225-set-network-location-private-public-domain-windows-10-a-network_location_settings-2.png

Paul

On 03/10/2021 14:24, Jonathan N. Little wrote:
> Fokke Nauta wrote:
>> On 01/10/2021 16:14, Jonathan N. Little wrote:
>>> Fokke Nauta wrote:
>>>> Hi all,
>>>>
>>>> We have a laptop (W10 64b Pro) where the wifi is logged in on our own
>>>> private network. It all worked well. But now the network center says all
>>>> of a sudden it's an unknown and public network, so file sharing,
>>>> connecting to shares in the network and remote access have become
>>>> impossible.
>>>> I logged off and on again, but it still says an unknown and public
>>>> network.
>>>> How can I change this back to a local and private network?
>>>>
>>>> Thanks in advance.
>>>>
>>>> Fokke Nauta
>>>
>>> Settings > Network & Internet > Status < Click "Properties" on adapter
>>> Network Profile > Public => Private
>>>
>>
>> I tried it, but cannot find the item Public.
>> On Properties there are the following issues:
>> (Translated from Dutch)
>> - Automatic connection
>> - Randon hardware adresses
>> - Connection with limited data
>> - IP settings
>> - Properties
>>
>> But no Public.
>>
>
> If this is WiFi not Ethernet then [In MS fashion] the setting is
> accessed in a different place:
>
> Down in the taskbar tray click Network icon locate connected WiFi
> connection and click Properties. Right near top is is Network profile
> and Public|Private option
>
>
>

It is Wifi indeed. I first checked the channel 5 Wifi properties. The
laptop was logged in this one. But in de proerties I did not see the
Public/Privat option.
Then I logged in to the 2.4 channel, and there in the properties I found
the Public/Privat option. So I was able to set it to Privat.
Many thanks! And I'm never too old to learn!

Fokke

On 03/10/2021 11:15, T wrote:
> On 10/3/21 00:55, Fokke Nauta wrote:
>> On 01/10/2021 23:09, T wrote:
>>> On 10/1/21 11:26, Fokke Nauta wrote:
>>>> On 01/10/2021 16:14, Jonathan N. Little wrote:
>>>>> Fokke Nauta wrote:
>>>>>> Hi all,
>>>>>>
>>>>>> We have a laptop (W10 64b Pro) where the wifi is logged in on our own
>>>>>> private network. It all worked well. But now the network center
>>>>>> says all
>>>>>> of a sudden it's an unknown and public network, so file sharing,
>>>>>> connecting to shares in the network and remote access have become
>>>>>> impossible.
>>>>>> I logged off and on again, but it still says an unknown and public
>>>>>> network.
>>>>>> How can I change this back to a local and private network?
>>>>>>
>>>>>> Thanks in advance.
>>>>>>
>>>>>> Fokke Nauta
>>>>>
>>>>> Settings > Network & Internet > Status < Click "Properties" on adapter
>>>>> Network Profile > Public => Private
>>>>>
>>>>
>>>> Thanks, Jonathan. That will do the trick. I will do it tomorrow and
>>>> will come back.
>>>>
>>>> Fokke
>>>
>>> Hi Fokke,
>>>
>>> I see this problem all the time.  Drives
>>> small businesses doing file sharing nuts.
>>>
>>> Jonathan's directions should work perfectly.
>>>
>>> -T
>>
>> Hi,
>>
>> I tried it, but can't find the issue Public.
>>
>> Fokke
>
> Hi Fokke,
>
>    Try my notes:
>
> -T
>
>
> Windows: Change Public to Private network
>
> Reference(s):
>     https://www.itechtics.com/change-network-type-windows-10/
>
> https://www.online-tech-tips.com/windows-10/change-from-public-to-private-network-in-windows-7-8-10/
>
>
> Windows 7:
>    --> Network & Sharing Center
>      --> click on Public or Private under the icon for the adapter under
>          "View your active networks"
>
>
> Windows 10:
>
> Before 1909:
>   --> Settings
>     --> Network & Internet
>       --> Ethernet or WiFi (left column)
>
>
> 1909+:
>   --> Settings
>     --> Network & Internet
>       --> Status (left column)  (NOT ETHERNET !!!!!)
>         --> Properties (button, under the label "Ethernet")
>
> Or,
>
>    --> regedit
>      --> HKEY_LOCAL_MACHINE
>         --> SOFTWARE
>           --> Microsoft
>             --> Windows NT
>               --> CurrentVersion
>                 --> NetworkList
>                    --> Profiles
>                          Dig out your network adapter from the list of
> profiles (GUIDs)
>                       --> Category (DWORD)
>                             0 = Public network
>                             1 = Private network
>                             2 = for Domain network
>                         --> reboot
>

Thanks.
But I already got it solved. In the Wifi properties there was
Public/Privat option. I was able to set it to Privat.

Fokke