I am having a weird issue where my File Server randomly looses its ability to validate users and provide access to its network shared folders.
Users get a "You do not have permission to access \\xxxx\xxxxx. Contact your network administrator to request access". Oddly enough, these users have access to the folders and was working leading up to logging in this morning.
This issue occurred on Friday after a restart of the server and again this morning (no restart this time). Both times it has taken me to remove the server from the Active Directory domain and re-join. Post re-joining, access is restored.
Attached is a before and after screen shot of the folder permissions screen as well as the error the users received. I also received the error when browsing from the Domain Controller across for shared folders. I was able to manage server items using Computer Manager file.
Running Server 2012 Core on the file server on VMWare infrastructure. Need to get this sorted asap as the guys at this site are 2 hours ahead of me and the issue has occurred at the start of their working day.