for the first 3 months of having this router I had no problems with it. Nat was always open. Yes I am connected to the correct port on the modem as occasionally I can do a speed test
but 99% of the time nothing works. at the moment in the middle of talking to virgin media to find out why in modem mode I lose my internet.
I will come back and update this once I can get into modem mode.Thanks again for every ones help