I installed a SWM 3 system for my buddy, 6 receivers 2x HR24 and 4x H25.... Signal strengths are : 99=90 101=96 103s=96 103ca=91 103cb=90 sms=100 Upon activation, it appeared that everything went smoothly until we went through the guide. He is subscribed to Premier, and I'd say 95% of the channels are getting 721 error not subscribed. There is a grouping of about 50 channels between channel 2 and channel 108 that are working, but nothing else. I've called customer service 3 times for re-hits. Unplugged the receivers, re-authorized online...Finally I got fed up and had to go to bed. Looking to work it out today before Football starts.Any ideas on what could be causing this error? Phone agents don't seem to be helping much as they just follow their script and ultimately it ends with a re-hit.