From personal experience I found MyTV 2 a bit hit and miss with some IPTV providers, having taken out three months sub with three different providers although they may have been resellers of the same server, I don't know. however all three stopped working before my subs expired with the login failed problem, despite having worked for a couple of months at least, contacting the providers involved failed to resolve the problem , one even claimed not to cater for my device despite it working initially. Other providers that use their own interface/player seem to be the safest.