Not receiving DOCSIS 3.1
Up until last week my ARRIS SB8200 was receiving DOCSIS 3.1, indicated by the blue lights on the front of the modem. Directly wired in I was pulling 900-940 mbps down. Those lights are now lit green,...
Forum Discussion
If you are only connecting 3.0, and not 3.1, it's indicative of either noise on the ofdm channel, like WMO suggested, or bad levels. Try replacing any splitters and barrel connections, and the cable cord from the modem to the barrel connecter.
Right now, the coaxial is running 50 ft from the wall, directly to the modem. Currently no splitters or barrels between. I can definitely try a new coaxial and could change out the wall plate. I posted my signal levels, but not entirely sure what I am looking at there.
Right now your signal levels are really bad. You are not locking half your channels, and the OFDM has no SNR lock. Also you upstream is too high. Should be below 50dB. Can you connect direct to the wall (minus the 50') and post what your signal levels are then?
Hey Wider, here are my numbers with the modem connected directly to the coax line inside the wall.
