Welcome to the Community!
I've located your account using your Community details and can see an escalated case being handled by our Engineering team.
I've now chased this with our Engineering team and has arranged a call today between 9:00am - 10:00am to discuss this further with you.
Should you need further assistance, please let us know.
I can see that one of our Engineers has tried to get in touch earlier to discuss this but it seems that you've missed their call.
Just to confirm, have you tried plugging the modem to a different power point?
Nonetheless, should you be available, please let us know your preferred contact time and number via Private message so that I can rearrange this call for you.
For your reference, please see How do I private message (PM) in the community.