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Event ID: 9640 Source: MSExchangeIS

Source
Level
Description
Only <number>% of user <name>'s <number> attempted RPCs have succeeded in the past <number> minute(s) (which is less than the threshold of <number>%)).

Adapter Speed: <number> kbps
Machine Name: <name>
Client Mode: <text>.
Comments
 
As per Microsoft: "An Outlook client may have experienced problems. The number of successful remote procedure calls (RPCs) sent to this Exchange server by the client is BELOW the specified threshold in a given time period. Potential causes include:
- Server resource bottleneck (for example, disk or CPU)
- Network problem
- Problems on the client machine." See MSEX2K3DB for more details.

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