When running either the OWA or the Windows Mobile default gathering tasks, a large number (i.e. hundreds/thousand) of the following error is observed in the task logs:
This could be the result of a constraint at the MessageStats server end due to too many AD queries happening within a short span of time.
Increase the default number of ports that are available for program traffic. The number of additional ports must be sufficient to handle the number of simultaneous network requests that are being made by all programs. The number of allocated ports is governed by a TCP/IP registry entry, MaxUserPort. By default, this entry does not exist. To create this entry, follow the steps listed in the following KB article from Microsoft:
http://support.microsoft.com/?id=836429
Set the MaxUserPort to 10000 or highter as appropriate and reboot the server for the changes to take effect. Please run the gathering task and see if the warning occurrences have decreased. This may have to be repeated a number of times to determine a suitable value for the MaxUserPort.
