This is an established Exchange 2010 on SBS 2011. It's been working pretty much just fine until now.
I discovered yesterday that we can no longer access EM Shell or EM console.
The error in both is:
Connecting to remote server failed with the following error message : Logon failure: unkown user name or bad password. For more information, see the about_Remote_Troubleshooti
ng Help Topic.
That help topic is here: http://technet.microsoft.com/en-us/library/hh847850.aspx
I didn't see an exact match or find much help there.
There are a ton of questions all over the internet about this exact issue with a lot of various answers. None of th eones I have found so far have helped.
I want to also point out that when running the "Fix my Network" wizard in SBS console, it ID's this problem, but offers no solutions. It ALSO finds that the self-signed cert is expoired, but this is NOT the case. However, if I let it try to repair the cert issue anyway, it "fails" even though it creates a new certifcate. I have 4 shiny new ones listed now.
Because of the issue with the certificates, I can't help thinking that the problem is deeper in IIS than just Powershell, but I don't know. I'm not an IIS expert.
I will say that activesync, mail flow, owa, ecp, etc all work just fine.
Any help trying to narrow in on the cause would be appreciated.