Server is running Server 2008 R2 Enterprise, Rest are Server 2008 R2 Standard I think its an issue with the credentials that it's using?
This is a backup server that connects to the admin shares of the other servers and backs them up. It has connectivity issues, it can connect to some machines but not others. But this issue is unique to this server.
I can ping the others servers, and if I run the troubleshooter then it says "File and Printer sharing is enabled but the server is not responding to requests"
Attempts to connect to these servers from other machines are always successful.
EDIT:SOMETIMES if I use the FQDN then it will connect successfully.