Sorry to butt in, I just love troubleshooting....

You might want to check on your rig's configuration page "Mining rig address (including port)*:" ?

I have a cron job on my rig that runs that "updateip.py" script every 5 minutes to keep my IP/Port up to date in case it changes. But you can just update in manually too on that page.

BTW miaviator, do you still support that script?

It calls the following page which seems to error currently:
http://leaserig.net/updateip.jsp?rigid=........

There might be a lot of people using that method.