Restriction of BBC Radio HLS/DASH to authorised third parties

[nickc]

Until this morning I was successfully using previous Github listed URLs, eg:
http://as-hls-ww-live.akamaized.net/pool...ewind.m3u8
Finding that's stopped working, like others I've found the BBC-Radio-lstn-HLS-.m3u streams (link in others' earlier posts) do work. Furthermore, as an overseas listener I discovered to my delight that changing the bitrate to .....=320000 they continue to work (with no need of a vpn). I checked that the bitrate is genuinely increased by playing them in VLC and observing the statistics.