2026-02 Security Update "(KB5077181)" shuts down my wifi access with a dhcp error

Question

When I installed 2026-02 Security Update "(KB5077181)" after the restart my wifi failed with a dhcp error. Connected but no internet.

Other machines could still see the internet from my wifi. I tried resetting adapters, rebooting, etc then using the troubleshooting tool and internet advice, but nothing worked. Can't find any advice about this update failing online with the dhcp issue, lots about a similar problem last year but those suggestions don't work on my system with this problem.

Eventually undid the security update. After a few reboots internet access was regained, but when I left my machine for a little while, it reinstalled the update! The same internet problem then reoccurred.

I have now undone the update again and paused updates for 5 weeks. So can work.

I have an Lenovo IdeaPad 1, just over a year old, nothing customised.

Anyone seen this and found a solution?

Answer 1

I installed the KB 5077181 update and my computer immediately started having major issues, which forced me to format the system. Now that I have reinstalled this update, I have confirmed it is the source of the problem. Windows freezes every single one of my programs because of this specific update.

Answer 2

This definately has a major install bug in it for monitors and network. I would back it out and send back to the test dev team for review. My samsung monitor TVs on NVIDIA 3050 will not load the TVs even after a reset of the TV Monitors. The load does not alllow for recognition of external devices such as a TV Monitor. Something is up for sure as i installed and reinstalled and redownloaded 2x.

Answer 3

It seems that the issue you're experiencing with the 2026-02 Security Update (KB5077181) causing DHCP errors and loss of internet connectivity is not uncommon. Here are some steps you can take to troubleshoot and potentially resolve the issue:

1. Reset Network Settings: You can try resetting your network settings to see if that resolves the DHCP issue. This can be done by going to Settings > Network & Internet > Status > Network reset.
2. Update Network Drivers: Ensure that your network drivers are up to date. You can check for updates in Device Manager under Network adapters.
3. Power Management Settings: Sometimes, power management settings can interfere with network connectivity. Check the power management settings for your network adapter and ensure that the option to allow the computer to turn off the device to save power is unchecked.
4. Use PowerShell to Re-register Network Components: You can re-register network components using PowerShell. Open PowerShell as an administrator and run the following commands:

      Get-AppXPackage -AllUsers -Name windows.immersivecontrolpanel | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml" -Verbose}
      Get-AppXPackage | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"}
   

   After running these commands, restart your computer.
5. Check for Windows Updates: Keep an eye on any new updates that may address this issue. Sometimes, Microsoft releases patches for problems introduced by previous updates.

If these steps do not resolve the issue, you may want to consider reaching out to Microsoft Support for further assistance, especially since this seems to be linked to a specific update.

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References:

• Network settings crash settings app, wifi and Ethernet not working or appearing - Microsoft Q&A
• Intel's My WiFi Technology stops working after resuming from sleep or hibernate in Windows 7

Answer 4

Does anybody have issue with privileges?

I do not have anymore access to files in my AppData

Answer 5

Hi,

Please try to fix issues by reinstalling the current version of Windows.

If the problem persists, please perform an In-place upgrade for Windows 11.

If you need more assistance, please let me know.

Stay Safe!