Do you have L614 or L615? Here was my problem. I noticed when I got L615 on the 622 that was connected to the phone line I lost caller id on the remote 622 that still has L614. Did the DishComm test in the menu on both receivers and and the remote receiver kept saying "Homeplug Device" and no dial tone. They made a change in the menu with L615. They changed "Add" to "Scan". I did a hard boot on both receivers and got the dial tone back on the remote receiver and did the "Scan" on the other one and it found a link. So, I would just do a hard reboot and see if that fixes it.