HI,
COCSPENC02-FC1 10.44.3.60 20:01:54:7f:ee:0c:a4:f9 timeout(Server,Client)
This means port 161 is not reliably open in the path from the server that has Fabric Manager installed to the MDS switch.
Since DM is working, the difference in DM and FM is that FM by default tries TCP port 161 first.
DM uses UDP port 161.
There may be a firwall or ACL blocking TCP 161 in the path.
There may be an intermittent ethernet/ip issue.
You may want to ask HP for help.
COCSPENC02-FC1 10.44.3.60 20:00:54:7f:ee:0c:a4:f8 timeout (Client),No Traps
This means Fabric Manager could not register for snmp traps using this command.
snmp-server host a.b.c.d traps version 2c public udp-port 2162
It may be related to the timeouts or there are already 10 "snmp-server host" already registered.
The MDS switch will support up to 10 ip addresses to send snmp traps to.
If there are 10 configured, try removing one of the unneeded snmp-server hosts
no snmp-server host a.b.c.d traps version 2c public udp-port 2162.
Regards,
David