In order to use Sirius on your Pioneer receiver, you must have a Sirius internet account. It is not enough to simply have a regular account. You have to also purchase the Sirius internet add-on, which will also allow you to access Sirius on your iPhone, iPod Touch, or iPad. Hope that helps.
I got the SC-61 unit back from repair and set it up again. The Network functions are back. Different IP but that's ok. I had a USB drive plugged in and went to the Update section and found the drive had nothing on it so I swapped it for another drive (USB 2.0 Card Reader with SanDisk 512MB UltraII Stick) and restarted the update. Successful update in no time. Yea.
So the repair shop said they replaced a component but didn't relate what it was. Can only guess but whatever it was, that was the culprit all along.
The unit's back, wired up and is updated. The app on my phone recognized it as SC-63. So I'm guessing the guys at Stewart Bros put a new NICard from Pioneer in. And the SC-63 card replaces the "hobbled" card of the -61. The update performed quickly and flawlessly.