X Forwarding has quit working on only 2 of our AIX Servers.

ssh -X -vvv host

That shows it requesting the X11 forward auth spoofing.
No errors.

echo $DISPLAY shows the display variable

However when I execute xclock.... nothing... Kinda like it just hangs and for some reasons it does not show any verbose output.

Have verified our sshd_config matches on all our servers.

---------- Post updated at 01:26 PM ---------- Previous update was at 12:25 PM ----------

Fixed. After digging through about 100 forums. The loopback interface did not have an IP associated with it....

Any special reason why ou are using xforwarding ?

I was using it for some of Tivoli and Oracle installations
but on my connection it was really slow.
Like 30 sec delay between click and action.

Right now when I am doing installation I am using vnc
it is much faster. You can find vnc server on Linux Toolbox