I’ve had the arris sbg 8300 modem router for about a month. Lost internet connection a few days ago and after connecting again, I only have access to YouTube and google on my laptops and have not internet access at all on my phone. (Phone shows it’s connected but can’t access a variety of websites). My 10 year old tablet has no connection issues.
I have done a hard reset, defaulted to factory settings, and unplugged/plugged the modem.
What else can I do?