BBC iPlayer - working with iPhone but not L2TP

I’m new to VyprVPN and trying to get BBC iPlayer to work through the uk1 vpn.

From my iPhone it works using the VyprVPN app (wireguard protocol).

Same test but using the L2TP via a router, and iPlayer blocks the session due to location.

Any ideas what the difference might be between the two connection types of connection?

Using ipleak.net the two connections appear the same, location is London UK.

If anyone else has already solved this please let me know.

Thanks.