FYI for those out there with a 2701HGV router and the separate infinity modem.
You may find you are unable to get the automatic BT download. If you switch to a Hub 3/4/5 then the problem goes away and the download starts immediately.
This is an ongoing issue with the 2701HGV with a newer download technology more and more sites are now employing for large files.
Downside of this is you no longer have a 2701HGV so if you have a Vodafone Suresignal then it will no longer work.
Good luck
