Thanks for much for posting and including everything you've done so far, this helps immensely. I just made an adjustment to the modem, please have another try and let me know if the sites work.
If they still don't work, please try disabling IPv6 on whatever device you're using to browse. You mentioned you're on Windows 10 so here are instructions on how to do it there. Let me know how it goes.
Good morning Nacomas3,
Thank you for this update and sharing what you did. These details are also helping our engineers try to get to the bottom of this so it can be resolved for all who still having issues. I'll keep your thread open a while longer in case anything changes or if maybe engineering has follow-up questions for you.
Ecoalex.....You were correct on insisting the problem was on their end. My internet access works great now even with IPv6 enabled. No happy trails until this years fire season is over. 😉 Nacomas3