Microsoft Windows 11 Pro Update 9-9-2025

[EFUMCFinance]

Microsoft pushed an update Tuesday 9-9 that has broken us. We are running a PowerChurch Plus V14 site license on a Windows 11 Pro machine as our server. That machine is fine. The PowerChurch client on the machine in the office running Windows 10 is fine, as is the client machine in the soundbooth running Windows 11 Home. Neither of the client machines running Windows 11 Pro will allow us to map the network drive to the server machine, although they have been running successfully for a year. We get a very helpful INVALID PASSWORD message /s. (The password is NOT invalid, as I just remapped the drive on the Windows 11 Home machine using those exact credentials). This is obviously a Microsoft problem not with the PowerChurch software. I suspect Microsoft has flipped one of their hidden settings back to "recommended", but I can't find it.
Current setup is LAN, private network, everyone still in the correct Domain, file sharing on (if this had been flipped on the server, I am sure everyone, not just the Windows 11 Pro clients would be down). And since everyone can get to the printer, which is its own ip node, basic networking is ok.

Anyone have a place for me to go look?
(I'll be reporting to Microsoft too, but their customer service is pretty abysmal). Thanks
Ellijay First United Methodist

Update: The problem is with Microsoft. Their update on 9/9 broke things on Windows 11 Pro. Home editions are fine. They "tightened security". We ended up fixing it by uninstalling Microsoft Update KB5065426! You can leave the other update pushed on 9/9 in place. Uninstall and reboot everybody and you are magically communicating again. This fixes remote desktop as well if you are having problems there.

[Zaphod]

You'll probably need to speak with a technician to be sure, but take a look at this Microsoft Knowledge Base article, and see if this fits what you're seeing.

https://learn.microsoft.com/en-us/windo ... powershell

I probably wouldn't do all those things without being on the phone with a tech, but it's worth a look.