Originally Posted by
DMSFCA
Any hardcoded values in her router, like a DNS server that is now invalid?
You can test on your iphone by going to:
Settings/Wi-Fi/(hit the "i" next to the name of your connected wifi network)
Scroll down to Configure DNS and set it to Manual
Add server 8.8.8.8 (Google's DNS)
Exit back, try testing again
I'd recommend Quad 9 (9.9.9.9) or Cloudflare (1.1.1.1) over Google. Google only provides free DNS so they can track you and sell your info.