Can't Remotely Access Whs V1 Via Home Hub 3

Hi

I recently upgraded to BT infinity and got a new home hub 3 router. All good .. very quick!

Opened the ports to allow remote access and this works fine from work and via my mobile phone etc

None of my machines will access my WHS v1 via wireless at home?

My main PC which is connected wirelessly via the router to the server works fine, drives are mapped, but also won't access the server via the web (remote) ie https:// XXX.homeserver.com. (I used the connector software on this one) Tried remote access via the XP machine which recognises the home server as a network place and will access the folders that way and this won't connect via the web either neither will my mobile phone if it is using my home wireless (as opposed to 3g when it will connect via the web) My windows 7 laptop won't access remotely either, it sees the server on the network but can't connect to it

I am stumped but am assuming it is a setting in the router ? .. is it something to do with the unPnP settings?

Any advice / ideas gratefully recieved