Exchange 2010 - ActiveSync - Error:TooManyClientOperations

Hello,
For last 4 months, our mobile workforce is using ActiveSync access to Exchange 2010 in combination with McAfee Enterprise Mobility Management 12.0 that acts as an (kind of) ActiveSync proxy. Monitoring IIS logs on our Exchange CAS/MBX
server, I’ve noticed that one of our users recently started getting a lot of following errors:
Cmd=Sync&User=domain%5Cuser.name&DeviceId=SEC2FA0AC3DE555E&DeviceType=SAMSUNGSMG900F&Log=V121_LdapC1_RpcC24_RpcL63_Pk3978727234_Error:TooManyClientOperations_As:AllowedG_Mbx:server.domain.com_Throttle0_Budget:(A)Conn%3a0%2cHangingConn%3a0%2cAD%3a%24null%2f%24null%2f0%25%2cCAS%3a%24null%2f%24null%2f3%25%2cAB%3a%24null%2f%24null%2f0%25%2cRPC%3a%24null%2f%24null%2f1%25%2cFC%3a1000%2f0%2cPolicy%3aDefaultThrottlingPolicy%5Fcfff8eee-4334-
Mobile device has all the latest updates installed.
Searching Internet, only relevant article I managed to find is on Microsoft Exchange Japan blog:
http://blogs.technet.com/b/exchangeteamjp/archive/2014/07/24/3635022.aspx
As I cannot find any other reference on MaxNumberOfClientOperations, I am reluctant to make that change easily. I would also like to know is there any way to monitor what exactly is happening (e.g. I would like to have a way to get more
info on currently active operations that IIS log is reffering to).
Thanks, MiToZ

Hello Martin,
Thanks for answering. I am aware of Exchange Throttling Policy concept, but I am uncertain what is happening with this particular user and I am looking for ways to troubleshoot it further. Using ActiveSync troubleshooting script from Exchange Team Blog
(http://blogs.technet.com/b/exchange/archive/2012/01/31/a-script-to-troubleshoot-issues-with-exchange-activesync.aspx), I can
see that this user is not anywhere near our top users based on number of ActiveSync commands sent to our Exchange server. Is there any cmdlet, log or any other way that I could use to see currently (or at some point in time) active client
operations?
Thanks, MiToZ

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