I've got an interesting little problem and I hope I can get some help from here before I call BT. My network runs off a Draytek 2860 VDSL router. I've had a couple of dropouts recently, just for a few seconds or so each time but sufficiently annoying for me to notice. I dug out my old BT Homehub 3 and fired it up. Wifi works perfectly and I changed the IP address range to 172.16/16 to not conflict with my Draytek. But it won't connect to BT Infinity and thus the internet. I happened to lift the telephone handset and it was dead. As soon as I pulled the VDSL cable from the Homehub I got a dial tone. I still got dial tone when I plugged the VDSL cable back into my Draytek. I tried changing the microfilter with no change and the microfilter is plugged into the master socket. I've tried a factory reset on the Homehub. What have I missed?