Having Stealth Mode Enabled will cause the Windows Server not to respond with a TCP RESET to the connection attempt by the WAS but rather
to drop the packet leaving the other host waiting for a timeout.
There are 2 possible resolutions to this problem.
(1) Disable Stealth Mode
If you do not require to use Microsoft Windows Stealth Modeyou can disable it as described in the following TechNet Article: http://msdn.microsoft.com/en-us/library/ff720058%28v=PROT.10%29
(2) Fix the CMS Request Port
If you dowant to keep Microsoft Windows Stealth Modeenabled you can manually set the CMS Request Port on your SAP BusinessObjects
installation. This causes the CMS to always bind to the same port and will not cause any problems as the cached request port will be re-used. To
set the Request Port, please see the Administration Guide of your SAP BusinessObjects solution.
For SAP BO XI 3.1: 3. Configuring server settings, Server host identification options
For SAP BO BI 4.0: 126.96.36.199 Server host identification options
Hope you find this useful.
Cheers, Umang Patel +919979084870 SAP BO BI Solution Architect/Consultant