We have a linkys wireless n router and my laptop has a n card. We have the fastest connection possible from mediacom. Out of no where the connection on my laptop has been very slow, I still have a full signal its just slow. The connection on the pc that we have the modem hooked up to that is wired is just like normal though. We have had the router since Christmas and it has worked fine up till now. What could the problem be and how could we fix this??