When you select the port to be opened then there is a list of Devices scroll to the bottom of the list and there is "User Defined IP Address" select this and a box opens up below it were you enter your IP.
If you are making custom port forwarding under the advanced tab you need to have the port coming in and the port you want it mapped to normally the same number or a range.
And you always have to make sure you click on apply.
This is how I have done it a number of times as I had to change the Home Hub 3 as the wireless stopped working completely.
I hope this helps.
Thinking of changing router has anyone had any experience with this model? TP-Link TL-WR1043ND as currently only £42.40 on Amazon.
I use Team viewer on all my PC's as this is free for home use this allows me to log into any PC or my server from anywhere in the world I also use this on my Mums laptop to support her as they live 2 hours away.
Do I understand correctly that BT didn't resolved this issue yet?
I'm about to change my internet provider and I don't want to spend days trying to setup port forwarding.