Advertisements I have a Motorola modem, Apple AirPort Extreme and tivo roaming pro. All have worked perfectly for 3 years. Today I discovered my TiVo won’t connect to the internet because of a TCP Port 37 error. The TiVo tells me the Port needs to be opened on my router. To the best of my knowledge all ports are open on an Apple AirPort Extreme. I have power cycled the modem and router and TiVo multiple times. In the correct order. I am a TiVo dealer for 7 years and I’ve never encountered this. Apparently it’s rare but I have found others online meantion a similar issue. Would appreciate any suggestions.