Over the past week or so I have started getting signal loss errors on my 622. These seem to only happen around 7-8pm. The 2 other receivers in the house are working fine. I'm in Northern California where the weather is not a factor. I first tried all the usual reboots, but to no avail. I just have to leave it be, and eventually it corrects itself. Haven' t called Dish yet, but I will if it continues. Anyone else having this issue?