New member alert so apologies if stupid questions. I have Devolo DLAN500 Duo Powerline adapters with Router, STB and Laptop connected, one to each adapter. Never had any problems with Router to STB connectivity (adapters at opposite ends of the same room), but frequent dropouts on Laptop in another room. As far as troubleshooting, to date I have had three different routers from two different manufacturers, changed all cables, tested with another laptop running Win 7, and even (temporarily)...
Intermittent Powerline Dropout
Intermittent Powerline Dropout