I just figured out what is going on with mine. Like stated before, OWA is fine, direct connect to the LAN is fine, but remote access isn't. I just talked to my ISP and they have shut down ports 135, 139 and 445 which would not allow remote synchronization of Outlook due to the MSBLAST\LOVESAN...
I am having the very same issue. Kind of bumping this back to the top. I have tried all kinds of things at this point. But like above, web access and folks tied directly to the lan can gain access. But those that attach offsite through outlook, they get the login prompt, but then nothing and...
It is the lovesan or msblast virus causing it. I had the same problem three days ago. No one was able to connect via Outlook, but everything else was operational. Found msblast.exe running in the processes list of task manager, removed the registry entry, rebooted the server, deleted all...
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