up2date error Internal Server Error!!

Whilst on my travels I came across this error.

====
up2date -u
Error communicating with server. The message was:
Internal Server Error
====

I am not sure what caused this error but the fix was fairly simply!

open the file

==
/etc/sysconfig/rhn/sources
==

and comment out the line

==
### The default RHN (using "default" as the url means use the one in the
### up2date config file). This is required.
up2date default
==

so that it will be

===
### The default RHN (using "default" as the url means use the one in the
### up2date config file). This is required.
#up2date default
===

save and do your updates!!

cheers!!