What about using your phone data as a hot spot just to test it?
If that all fails I would send an email to customer support to report the faul, where you can send videos/pictures.
Address in below picture.
FYI that I do not work for NOW, I am simply a NOW customer trying to help I am a Community Contributor This means that I know a lot about the service and like you I am still a customer. For any account issues you’ll need to contact staff via customer support.