Hi Sumeeth,
Thanks for uploading the info!!
The AP manager interface is the NON-PINGABLE interface.. what ur able to see is the expected behaviour.. the AP manager IP should not be pinged..
However, from the config i saw ur management and the AP manager are assigned to dofferent ports.. please issue the command and lemme know if that resolves the issue..
config interface port ap-manager 1
Please lemme know if this answered ur question and mark it as answered if so!!
Regards
Surendra