While checking IIS log on my CAS server, i got those Activesync error in batch for a lot of users and really often(could be twice a minute or more)
POST /Microsoft-Server-ActiveSync/default.eas User=email@domain.com&DeviceId=ApplID&DeviceType=iPhone&Cmd=Sync&Log=V141_LdapC1_Cpo19984_Fet34408_S111_Error:TrySubmitNewTaskFailure_Mbx:MBX.domain.local_Budget:(D)Conn%3a1%2cHangingConn%3a0%2cAD%3a12000%2f12000%2f0%25%2cCAS%3a27000%2f26704%2f1%25%2cAB%3a12000%2f12000%2f0%25%2cRPC%3a12000%2f11772%2f1%25%2cFC%3a%24null%2f0%2cPolicy%3aDefault%2cNorm_ 80 email@domain.com 192.168.X.X Apple-iPhone4C1/1002.146 200 0 0 38315
It's not only affecting Apple Device, I see some Samsung or other Android device
Anyone know what this error mean ?
I have check ActiveSync Device log, which not contain any error, but customer something see error on their device
Cannot Get Mail
The connection to the server failed
MCITP: Enterprise Messaging Administrator 2010 MCITP: Enterprise Administrator on Windows Server 2008 MCSA: Windows Server 2008 VMware Certified Professional on vSphere 4