gtm_add failed after change sshd port

Well gtm add uses ssh initially before switching to iquery for ssl cert exchange for iquery to work. Still you can test with setting the self up port lockdown to allow all but I don't think that will help. After gtm add you can then switch the ssh port as gtm sync uses iquery but how did you change the ssh port as F5 does not recommend touching some things on the red hat Linux as it is a custom setup and also the Selinux context can get mixed?