HI, I connect my imac on a pc win7 with smb (192.168.1.100) and suddenly I get disconnect and the smb unmount from the finder. Sometimes and I can connect myself on the server during 1 day and another day it disconnect after 4 seconds and I get an alert with "The connection failed..." I access to another pc computer(192.168.1.104) with the same methods without any problems. I activated the guest account on the pc with a 4 days success after that ramdom failed come back. Anyone know why ? Thank you.