I've had BT Infinity for a couple of years, generally had no problems until a few weeks ago when the connection seemed to be up and down a lot.
I've now switched from:
Open Reach white modem -> BT Infinity for Business Router -> Apple Time Capsule (Bridged mode)
Open Reach white modem -> Apple Time Capsule (connecting via PPPoE).
All seems fine and I've suddenly got a much better upload speed. (+5mb from original configuration). However a friend has told me that the BT Router is used to maintain the line sync / calibration and that eventually my line will drop to below 2mb.
Is this true?