I have not logged into TMC in a long while, but I had to come here to check because I just started to experience LTE issues today on my 2015 Model S (with MCU2 upgrade). Super slow connection, no traffic updates, can't load a song to stream, super slow trying to figure out map data/directions, etc. Glad to see I'm not alone. Except I'm in CA (CAlifornia, not CAnada)