Solution: Blackberry web app says error 500

fix blackberry admin web app on a server. BESX 5.0.3, server 2003.

set the following reserved ports and then restart the listed services afterward

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters

Reserved Ports

48855-48858

45588-45588

49955-49955

45599-45599

Restart DNS

Restart BES Admin service

wait 5 minutes