Joomdle Configuration Error

No matter what I change the Internal IP address setting to, when running the System Check, the first IP address I input is shown, which fails the System Check (Source IP Not Allowed). No matter what else I change the IP address, even leaving the entry blank. I searched for the IP address in the database so I can drop the value and can't find the entry. Has anyone else run into this? I'm trying to to create an SSO between Moodle 2.0 and Joomla 1.7.3.

You should get a message like:
Source IP not allowed: 127.0.0.1

So, you would enter "127.0.0.1" in the "Internal IP address" field.

Yes. But when I go to change the IP address, it would still read 127.0.0.1. Even if I changed the IP to 255.255.255.255. However, I think the SSO worked because I am able to autologon using my Joomla credentials to my Moodle 2.0+ site. The username is not reflected in the "You are logged in as ___" message after logging on to Moodle but I am able to logon. Just trying to make sure its all working properly...

If you get an error in system check, it will not work properly

255.255.255.255 is a mask, not an IP. You need to enter the IP: if ot says 127.0.0.1, enter that one.