Tony

I don't know 'why', however, I do know that the ports on BTHH2 have subtly different configs. Port 1 is different I believe and meant for BT Vision (as mention by a OpenReach engineer during a recent visit). Suggest trying a different port arrangement for your ethernet cables into BTHH2.

John

808v6, M60, MC200, HD621, Lumagen XE, 504, SB Touch, 563, 201, 204, 208, MPMAX 221, M80, Explorer, Explorer2.