I have a SWim8 connected to two HR24 IRDs.. been connected since this past winter. Periodically, I'll try to watch a program from the other IRD and it won't play but instead I get an error that there were no data packets received and program can't be watched. I can watch it on the original (where the program was recorded) IRD, though. This doesn't happen all of the time, though. Any idea why this happens sometimes? How do I prevent this from happening?