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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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If none of the above suggestions work, create a "System Restore" checkpoint.
Within "Device Manager", uninstall the device-driver for your network adapter, and remove the device.
Restart Windows, and let it try to reinstall the device-driver.
Better?
Disable "IPv6" for the network adapter on your computer.
I don't have IP v6 enabled at all on either Windows Adapter or Router, I have checked most of all the previous settings including registry and services etc.
It's something that Microsoft changed on the 1st general release of 24H2 that is causing the problem, my other PC has exactly the same Network card and got a later release of 24H2 and is not affected by it, because I stopped it from downloading for quite a while.
I know that disabling IPv6 is a workaround. This workaround worked for me.
24H2 added a stale IPv6 DNS server on top of the list of DNS servers advertised in option #6 of my DHCP leases.
This is a protocol violation which breaks DNS resolution for reaching my internal hosts, at least.
Corrective action taken: rollback to 23H2 while c:\windows.old is still there...
Disable "IPv6" for the network adapter on your computer.
Afther Months this bug is still here. Yesterday my PC was forced to update to Win 11 24H2 and I've got internet problems. Randomly when I reboot PC it goes well, internet cabled connection works fine but other times when I start my PC Internet doesn't work, websites open after ages or don't open at all. I had before and now with current windows 11 version setted in my PC a static IP address but the issue is still here
I know you would have thought they would have fixed this problem by now. After I got the recent update, I thought it had went 2 days coming out of sleep mode with Internet okay, but this morning it didn't, what I have been doing is waiting for the recover from sleep to complete then right clicking on the Network icon and selecting Network Connections, Disabling the connection waiting a minute then0 Enabling it., which is all that restart Adapter does.
By the way I am just an elderly home user with 2 PCs sitting side by side and a Laptop, all running 24H2 now, and am only having the problem on the 1st PC that was updated, the other PC and Laptop don't show any Network problems at all - all 3 are using Ethernet not WiFi
