Hi Malcon,
I found out what’s causing this error, SLES 11 uses old NCC Url to do the registration, I just updated the configuration file “/etc/suseRegister.conf” with the current working SCC url and my system was successfully registered.
This “problem” is related in this document: https://www.suse.com/support/kb/doc/?id=000019508
Thank you very much for your efforts helping me with this thread.
Have a nice day,
Best regards,
Everton Weschenfelder