Welcome to the Community!
I've managed to locate your account using your Community details and ran initial remote tests. There is a possibility that there is some performance connection issues which we need to investigate further.
I went ahead and raised the issue to our Engineering team for assessment. Please ensure to still leave your modem connected and turned on at all times. An update should be provided within the next 24-48hrs.
Should you have another preferred time and number to be contacted, please do let us know via private message so we can inform our Engineering team.