I am alos having the exacatly same problems with mywifi app. I can login to mytelus on my desktop but can't login to mywifi app on my iphone6. The app says : Unable to login to this aoo with your myaccount settings. Please try another account. I don't have any answers from telus too. They have the worst customer service. Why do I have to wait over an hour to talk to a human .
Same thing here. MyTelus app logs in fine but the My wi-fi app will not log in. Registration takes you to the TELUS identity which I have but will not work with Telus My wi-fi. Does not work on iPad using wifi. Does not work on iPhone using wifi or cellular LTE. If anyone finds a fix please let me know.