Hi, For the last 2 weeks I have been experiencing wireless connection lost problems. Only after a coldstart I could be able to reconnect. I tried a different thing, and changed the routers position. It is still in the same location but formerly it was on the floor. Now it is on a table, which is about 1 meter above the ground. Now, my laptop and the router are at the same level. Signal to noise ratio signficantly improved and I am not experiencing connection problems for about 5 days. Although this does not change the absolute distance of two devices much (For 7 meters distance 1 meter height change, nearly does not changes absolute distance), it worked well. I asked the situation some of my friends taking antenna enginerring class, and they also do not have an explanation for this. To sum up, if it is possible for your case, I recommend you to place router at the same level with laptop. I cannot guarantee that it will work for you, but at least you cannot lose anything. Have a nice day.