Sorry to butt in at the end but I had the same type of issue with a wifi repeater(Netgear) in our rather rambling house. In the end after loads of attempts to get it working properly gave up. Instead I am now using a powerline system (TPLINK AV500 second hand from Fleabay) system in my house where the furthest room is nowhere like in range of the normal wi-fi. Using one input module and two wifi modules (one in the lounge and one in the furthest room) I now have very fast internet throughout the house and all for less that £60 (new price would be much more I guess) Its not the fastest powerline available but is reliable and gives me a constant 35-40mbps up and down at the furthest point. In addition the wifi modules have two ethernet ports so I can connect the TV to it and still have a lan socket spare as well as the wifi! It has been so good I have now installed the same system in my mum's house and also in a friend's house and we are all really pleased with the results. Its a doddle to set up and easy to maintain. I would never now go back to a repeater or extender system!