Just got the HH5 but getting very slow speeds on the WIFI side 2.4 GH (around 10 mb ) was getting between 30-45 mb on the HH3. BT technical keep telling me there is an option to switch of the 5 GH in the home hub manager but for the life of me i cant see an option to switch of 5GH. Im using the HH5 in exactly the same position as was the HH3 my fibre wired ethernet speeds are fine between 70-75 meg. I am doing the speed tests for mobile, ipad, through ookla speed test. Any help advice appreciated please.