just completed a new voip system from our 2 offices and coincidentally, when users tried logging into their pcs, they started getting the message that the trust relationship between the workstation and the domain controller has failed. I have seen this a few years ago and so i did what i did then which was to unjoin the domain then rejoin it and this worked so far for 2 workstations. Just now we got an error thats similar while trying to remote desktop to one of our member servers. It said that windows cannot connect to the domain either because the domain is unavailable or your because your computer account was not found. I assume this is related to active directory and to correct it i would have to rejoin this server to the domain but is that the same process as with the workstations or is it more involved? Any ideas what could suddenly be causing these issues? The ip traffic is all moved now to point to the new phone system mpls gateways so i think this is a possible reason since everything was working until the 2 sites got connected earlier this week and the pcs and servers on both sites are all pointing to new gateways now. thanks.