Problem in network Windows 11 24h2

Anonymous

After updating to the new Windows 11h2, some machines experienced network issues with both cable and Wi-Fi. They connect but don’t get network access and receive an IP address starting with 169…, resulting in no internet or network connection. I updated drivers, firmware, and reset the network settings. The machines’ MAC addresses haven’t changed. Does anyone know what could be causing this?

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Anonymous

2024-12-16T15:46:21+00:00
WORK AROUND for me. Hope it helps.....

GOOD MORNING - started out terrible after working on a computer at home all weekend.

To have it Update from win10 22h2 directly to Win11 24h2 , after a M.2 replacement.

Bringing the computer back to work and find all these 24h2 network issues and having to get things going. (HOME no problems noticed)

Made it work by going into Network Ethernet settings.
```
  DNS Server Assignment 

      change to Manual 

            turn ON IPv4 

      Preferred DNS = I used 1.1.1.1 

          turn DNS over HTTPS = On (automatic template)   
```
used 8.8.8.8 for sec = same options
```
 SAVED = Internet now working 
```
Note screen shot.

Hope it helps you too.
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Anonymous

2024-12-16T14:18:05+00:00

>> Will that stop my router giving out a public facing IPv6 address?

That depends on which third-party router you are using.

If you are using the DHCP-server supplied by your Internet Service Provider, it will not assign an IPv6 to you.

Try disabling IPv6 on your computer, to see if it bypasses your issue. If it does not help, enable IPv6, and keep trouble-shooting.

Thanks, that did indeed fix the problem, my DHCP is just run through my broadband router
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Anonymous

2024-12-16T14:06:35+00:00

>> Will that stop my router giving out a public facing IPv6 address?

That depends on which third-party router you are using.

If you are using the DHCP-server supplied by your Internet Service Provider, it will not assign an IPv6 to you.

Try disabling IPv6 on your computer, to see if it bypasses your issue. If it does not help, enable IPv6, and keep trouble-shooting.
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Anonymous

2024-12-16T14:02:08+00:00

>> Check if you have option 43 enabled on your DHCP Server.

That might work, if you have a DHCP-server within your local network.

But, if the DHCP-server is configured by your Internet Service Provider, their network engineers are NOT likely to change the configuration of their DHCP-server, without extensive testing. Good luck in getting them to consider such a change.

.
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Anonymous

2024-12-16T08:14:36+00:00

The "undo" files are kept for 10 days.

After that, no rollback is possible.
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