Don't know if this has been covered or not but I did wonder this. I have a 522/322 setup and I was messing around and saw that they both were scheduled to connect at 3:00 AM each day to Dish. I am ASSUMING that means that they are both trying to connect via the phone line at the same time. I had a message on the 522 this morning about making sure that I left the phone line connected which reminded me about the times that were set. I have since changed it to 3:00 for one and 3:30 for the other one. I did a manual connection to the service and all went well. Is that enough space in between to have the updates take place?