THE IDSM-2 IPS Sensor in my 6509 switch was not auto updating from version 6.1(1)E3 S297, so I manually updated it to 7.0(2)E4 S480. Unfortunately it still won't auto update from cisco.com and I think the url it is using is not correct. My IDSM-2 Configuration has the url of:
Is there a more current URL I should be using?
The URL you provided is the correct URL.
You can see what might be occurring by reviewing the output of the command sh stat host from the CLI. The very end of the output will display the auto-update status.
With that output you can either post here, and time permitting we can try to work through the issue, or you can open a service request with TAC for directed assistance.