Windows 2008 R2 server with SQL 2008 installed is constantly hanging after reboot.

This 2008 R2 server with SQL 2008 is in a workgroup and the ethernet cable is disconnected. After logging on using a local account I was unable to successfully log into the sql management console using the SA account. The previous systems administrator has always logged on using the SA account.

Windows 2008 VPS via Windows 2008 R2 server with SQL 2008 installed is constantly hanging after reboot..