Needing to sign in to wifi?

Ive been a telus network user for years and all of a sudden ive been told i needed to sign into my networks again, no biggie, i press on it, but the website wont load? so ive been stuck using my data for the past day. i have 4 networks and they all wont work, they want me to sign in but the website gives me an error so i dont really know what to do. this only started happening after my general area went under maintenece the other day.