after FSE configured the self-help console gateway IP.FSE tried to login the VNC but failed.
on FA portal, there is no alarm for this issue.
after checking the configuration on FA portal.that we found the self-help gateway configuration IP is VRM servie IP gateway. that was not correct.since we need configure the IP with vAG VM service IP.after correct the IP, issue fixed.
corrected the IP.issue fixed.