UTrack Remote via Wireless still not working

Hi, (PC Win7 – router TP Link WR841N with latest firmware and U24 f/w 2469) LAN Mode not WAN
Still have problems not receiving wifi use with u remote, any ideas.
Double checked router and getting wireess from it (and ethernet working, see below) but not from the rack, does any one have this running with a PC.
What would I have to configure my router to get this working, or is it a fault with software remote.
Ie…… do I have to give the router the specific IP or Mac codes of my rack unit ??
Just to add ,the only way to get the wired (Ethernet) version working was by telling windows 7 to run in XP SP2 mode,very odd.
Has every one else got these running, as would like some help……. thanks