One of our customers has LMS3.01. I've added a new DefaultIpEcho collector between to remotely located machines (6500 and 4500) for historical and real-time monitoring. Credential Verification check was Ok (snmp RW/Ro community) and I've enabled the remote machine as rtr responder.
Every time I click on the Monitor button in the Collectors Mgmt - Collectors tab I get a web page with the collection details, however the graph (gif) is missing (a red X instead of the gif).
Data is being collected every minute.
Troubleshooting ideas are more then welcomed.