I just wanted to chime in with my frustration with this same issue. I am running Windows Ultimate with my AT&T Tilt (HTC). Everything was flawless until I was also syncing with an exchange server. It actually worked for about a couple of weeks and now it will not sync to the Exchange. So I have ended...

Thanks again to Chris De Herrera for this table of error codes. possible causes, and possible solutions.

At my company, we are a large Exchange shop and have a lot of WM devices. We have an internal support team of Exchange admins, but the Exchange Activesync (EAS) and Windows Mobile support work is enough that we'd like to carve out the duties to a separate team. From an internal point of view, this...