Exchange server/ push mail not syncing consistantly?

[GT!]

Originally Posted by Magicality

I will show an example from my SERVER log files below. I edited my phone's IP to 127.0.0.1, my email to email@domain.com, my username to username and my deviceID to XXXX for security purposes.

Note the difference in the two lines: One sends the login credentials along (3rd field), one doesn't. This results in the first one syncing the mail (status code 200), and the second one getting access denied and thus no sync (status code 401).

127.0.0.1 - email@domain.com [22/Jul/2008:08:55:50 -0500] "POST /Microsoft-Server-ActiveSync?User=username&DeviceId=XXXXXXXXXXXXXXXX XXXXXXXX&DeviceType=PocketPC&Cmd=Ping HTTP/1.1" 200 - "-" "MSFT-PPC/5.2.1001"

127.0.0.1 - - [22/Jul/2008:09:05:48 -0500] "POST /Microsoft-Server-ActiveSync?User=username&DeviceId=XXXXXXXXXXXXXXXX XXXXXXXX&DeviceType=PocketPC&Cmd=Ping HTTP/1.1" 401 64 "-" "MSFT-PPC/5.2.1001"

I've been running WM6.1 against an Exchange 2007 server for months and have never had the problem. I'm not saying this proves anything, but just making you aware that the problem you are having is not affecting everyone with WM6.1.

-GT