No Access to sites including streaming services

I'm having issues connecting to any sites other than google, youtube, the CPA website, and this telus fourm. I've reset the router/modem multiple times. I cannot access the panel for the modem through the normal addresses (192.168.1.254, 192.168.1.1, 192.168.0.1) If anyone has any idea on potential methods of solving this before I call a technician that would be great.