Yesterday I had the AD working with roaming profiles. Today I logon and find that I can access any of the network shares. I removed roaming profiles, removed the computer from the domain, readded the computer. Logged on locally with a user, GP applied, but still no access to the shares. If I use run \\servername\users, or \\servername\netlogon - access denied. I added the user to the domain admin group - logoff, logon - access denied.
I can ping the server by server name and IP.