Sorry to hear about the problems you're having with your wireless connection at the moment. Have you tried changing your operating wireless channel? If not can you please give this a go as it's likely to improve the performance of your network.
Hope this helps,
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Thanks for that but I will give it a miss as I cannot afford any messing about with down time. the so called super hub will stay where it is 8 foot away from my lap top, as long as I don't leave the room it should work. the whole family are confined with wi-fi to one room, totally let down with its performance