Same thing happened to me last night (Wednesday) but with my superhub 2 which I've had for around 3 years. It just died. Not sure if it's the power supply or the hub itself.
Phoned customer services and they said they'd get an engineer out to me on MONDAY!! Phoned back today and they've brought the appointment forward to tomorrow afternoon which is a bit better, but still, 2 days without broadband is highly inconvenient. I thought when I phoned last night they'd have sent me out a new superhub by Special Delivery today, not drag things out longer than necessary.
Good luck with yours, hope you get it fixed quicker than I have.
Thanks for posting and a big welcome to the community
Sorry to hear about your loss of service, I want to look into this for you, but I'm unable to locate your account. I'll just drop you a quick PM (purple envelope, top right) to confirm additional info.
Speak with you very soon,
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