Servers custom System Protocol Settings lost after 5 min

Hello,

We monitor servers on remote sites, due to a bad internet connection remotely we receive frequently emails from HP SIM saying it couldn't connect.

Message:

Event Name: System is unreachable
URL: xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Event originator: xxxxxxxxxxxxxxxxxxxxxxxxxxx
Event Severity: Critical
Event received: 18-Aug-2014, 15:51:52
Event description: The current system is no longer reachable from the central management server, hardware status polling has marked this system as not responding

 I configured a longer timeout on System Protocol Settings to 60sec * 5 retries (5 min) on each remote servers in order to lower the number of false positives.

When I apply the new configuration, I can see the new values within 5 min but after that, the interface shows the default value and surprisingly the 5 min timeout seems to work...

Have you every eperienced that ?

Thanks

Philippe