I am having issues as well. My old faithful HDPRV died and shaw replaced it with the 3400. Now is very slow and problematic. I like the 3510 with its new guide and automatic hd feature but shaw wants me to purchase or rent it. I'm not sold on the gateway. I'm paying about $160 a month now with my services and have been for a long time, its to bad shaw is really lacking in customer service these days.