Recently, our Server 2008 R2 server stopped allowing none domain computer or VPN users to access the shared folders. It used to prompted us for a user name and password and we would use our domain logins to access the shares on the server. We receive the error code as shown in the picture I have attached. "The trust relationship between this and the primary domain failed." How can I get the server to prompt the user name and password again so non domain PC's can access it again. All of our other servers are working perfect and they are Server 2008 R2 and Server 2003. Thank you!
1) Check and see what the preferred DNS server settings are in the TCP/IP settings on the workstation, and make sure it is set to the ip address of the 2008 server.
2) Check your firewall settings on the server. Temporarily shut down the firewall and try to connect. If you can then we can look at the rules and see which one is causing the problem. If not, resart the firewall and we can try somthing else.