PRAY, on TWO occasions E sent replacement boxes to my moved physical
DESPITE CLEAR INSTRUCTIONS to send it to billing address. Told them it might get stolen going to physical
I used a schools address, so it could never cause a conflict. Drove a couple hundred miles each time this happened, 2.5 hours each way.
The school was my customer
I gave them a free service call for their trouble, worth over 200 bucks.
I fix upgrade etc everything myself and after that got rid of my bug ridden 721s upgraded to 522 / 625 and bought a spare box too.
After this I moved home, the multiple dual tuner DVRs solved conflicts and E shut off the feeds, had to by court decree
Best advice work with a local dealer who can help, or get a close by sat guys member to help you out. Buy a spare box, and hope for the best