Outlook Freezing - Tons of "DCERPC Request: call_id" Packets

["Anderson, Maurice via Wireshark-users" <wireshark-users () wireshark org>]

Hello,

Wondering if anyone has seen this.  We're troubleshooting an Outlook freezing problem.  In the WireShark trace, we get 
tons of these:

[cid:image001.png@01D314ED.F22322F0]

The .25 address is our Exchange server and the .11 address is the workstation.  The lines above repeat many many times 
and I'm sure that causes our Outlook slowness as the packets repeat over and over.  Problem is I have no idea why it 
keeps repeating.

I am pretty much 100% sure that the DECRPC traffic is MAPI.

Have you seen this?

Thanks,

-Maurice

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