Cisco Network Assistant 6.3 (4)
Cisco WS-C2960X-24PSQ-L 15.2(7)E3
When trying to configure port settings:
ERROR: C2960X the CommandSet feature feature failed for this device
Application log and screen shot attached.
you did not understand my question: => did you enable http/https access to the device?
The server 10.1.1.3 failed to respond
suggests 10.1.1.3 is not reachable for http(s) requests!
so the question is does the switch-config contains HTTP/HTTPS enable command? (not within CNA)
if in doubt attach the running-config of the switch to this post, the i can check.