I have a CX4-960 running flare 28 patch 19.  For the past 2 days, neither SP will serve up Navisphere and I can't get to the http://SPA/setup page to restart the mgmt server.  I am able to ping both SPs.  When I'm connected to EMCREMOTE and run navicli commands I get a message "Error returned from Agent - Agent not running".

I reseated the management module which didn't help.  I used EMCREMOTE to logon to each SP and can ping the localhost and the service LAN IP - 128.221.1.250.  We tried to terminate navicimom from the console of the SP but could not stop the thread.  This morning, I scheduled a rolling reboot of the SPs.  I rebooted SPB (removed and reseated) but the SP came back up still experiencing the same issue.  During the SP reboot, I logged onto some attached hosts and verified that the default LUN owners shifted to SPA and back to SPB after the reboot so I assume that the SPs are otherwise functioning properly.

Any ideas?