Hello @kkkkkkk1,
Thanks for the info - I am in Brampton (Toronto) and tried my TSN GO - I was able to get it with no problems.
Give Roges a call at 1-888-ROGERS-1 and ask them about this issue - you should be able to sign into TSN GO using your MyRogers user name and password.
In the meantime, have you tried the "Rogers Home Edition" app? This app allows you to stream live TV via your tablet/phone, and includes TSN4 (in this area, at least).
Wish I could help more, but this is something only Rogers technical support could help you with! 🙂