It's OK, Bracknell is not EE 'out-of-area'. So only P2P and newsgroups should be throttled there.
Can you run BBC iPlayer Diagnostics
at times when streaming is OK and when it isn't, and post results.
Also run: BT Wholesale Broadband Performance Test
, carry on to Further Diagnostics at bottom and post text boxes.
Cheap corded phones are best for the QLT.
1999: Freeserve 48K Dial-Up => 2005: Wanadoo 1 Meg BB => 2007: Orange 2 Meg BB => 2008: Orange 8 Meg LLU => 2010: Orange 16 Meg LLU => 2011: Orange 20 Meg WBC