FWIW - my experiences with signing up for Sky Broadband:
I thought when you provided a MAC Code the transition was seamless. In my case my BT Broadband was cut off, but my Sky Broadband wasn't connected.

My Router arrived but when plugged in the lights wouldn't light up.

When I phoned Sky they wouldn't do anything until the Sky Service was connected.

I tried phoning Customer Service instead of technical help, but that didn't work,

so I waited the 3 days out.
Once the service was connected Sky went go through the trouble shooting process. Within 4 hours we established that the router didn't work. They replaced it within 3 days. The replacement router worked easily.
I'm currently waiting for replies to the query I raised below. In the meantime if anyone can point me in the direction of how to access the router I would be very grateful.
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1) I used to have a D-Link DSL-G604T Router. When I replaced it with your Netgear DG834GT my Wireless Signal Strength dropped from 100% to 40%. Whilst it does work providing I keep within 20m of the router the signal degradation doesn't seem acceptable.
2) When I tried to access the Router's Web Interface in order to set fixed IP addresses for my Printer & NAS the standard login of admin & password for the DG834GT doesn't work
3) When I tried to download a film from Sky Anytime I got the message: Error Code -16 - this is to do with logging in from a different PC. Firstly - I was accessing Anytime from the same PC that I had used to sign up for the service from a few minutes earlier, so this seems a strange message. Secondly the whole reason for having a router is that you can use one of several PCs to access the internet.
4) Since installing Sky Anytime my Spyware s/w (Spybot) has been going bonkers with alarms about changes to my registry. I have allowed all these changes as I realise that you wouldn't be using your software to report information on my computer usage, but as it is annoying & continuing, would I be better replacing my Anti-Spyware with that you have supplied? Will yours stop triggering alarms & ignore the registry changes?