I have a HP ProBook 6540b laptop being plugged into a HP Basic Docking Station. Laptop is Win7 Pro and DC is on Win Server 2003 SBS SP2.
The user of this laptop uses it both on and offsite. When offsite it connects remotely to the DC for email access etc.
Over the last few months have been experiencing strange problems with it losing connection to the domain and displaying "The trust relationship between this workstation and the primary domain failed". This happens when logging on, regardless of whether the laptop is on the docking station or not.
At first I just rejoined the laptop to the domain and all was fine until it happened again about a month later. Next step was replacing the docking station with a new one (and rejoining to the domain) - but the issue has now returned once again.
The thing this time is that if the laptop is not on the docking station it logs on fine. If it is then placed onto the docking station it continues to work fine. However, if the laptop is connected to the docking station when logging on, then the message above appears.
There are no drivers for the docking station as such (just support drivers for various ports) so I can't try that. There are no related entries in any of the event logs on either the laptop or the DC. I could just say to the user to logon while the laptop is not plugged into the docking station, but I'm still curious as to why this is happening.
Any help appreciated!