After my SharePoint Foundation recovered from "Cannot connect to the Configuration Database ". I found my Sharepoint site collection got some exceptions.
When I try to log in with a domain user account, I find the right corner display states "System account" instead of Domain\Username. The account also has the system account permission. Then I checked every computer in the domain, every user had this issue.
But when I went to Library setting from the homepage I found the account to have the correct name, but when I went to other page, the page displays system account again.
I really have no ideas about this issue. Can anyone give me some suggestions to resolve this?