This is a weird one. Essentially I have a standard Workgroup at home, several PC's, and on each machine, the Administrator account unlocked in lusrmgr.msc. Password set the same for each PC so I can do push installs for Backup Exec and AVG etc.
One machine however, I just can't login to. I can't even access shares using either the administrator account or the actual users account who shared the files (And I am putting the correct Computer_Name\Username!).
It just errors like you are using the wrong credentials. Any ideas? I have tried creating other user accounts, standard user and administrator accounts, if I turn off password protected sharing it's fine for user shares, but I still can't push install using the credentials.