I am having an similar issue with syncing my phone to my computer, as I see many others have had. I have Vista Home Premium 64bit. I have a HTC Titan phone with Window Mobile 6.1. It worked and synced fine for about a year and a half, then one day....stopped, and I get the "there is a problem with your connection. Please disconnect and reconnect and try your device again" error.
I have been through Sprint and HTC support. I have deleted everything, reinstalled everything. Did a hard refresh on the phone, reinstalled everything, still nothing has worked.
It works and syncs perfectly with my Vista 32 bit laptop, so it appears to be this computer, not the phone. I have to assume some auto update was installed to Windows that has killed this, but have yet to find anyone in any forum who has found an answer.
I did delete the device manager setting for the phone, and when I plugged it back in, it reinstalled itself...AND Windows detected an HTC USB update, which it installed fine. But still the same error. This is very frustrating.


