Have no idea why, but came in today to find Exchange 2010 not working. Upon investigation, found that all Exchange services were disabled, along with IIS.
I re-enabled all services and now Exchange is processing messages, but I cannot manage the console. It has something to do with IIS and Kerberos. I followed this doc:
, but still am having problems.
I did have to change the account used for testing the powershell path to Administrator in Default web Site, Powershell, Actions, Basic Settings
See attached screen shots