Both of my computers that are on wifi were almost like I was on dial up for a few days even though my sons computer that is wired was running fast on comcast, I went on the internet and saw some people say I should try changing the channel of my router so I tried but coundn't figure it out. I reset my router back to the factory reset on accident then all of a sudden I counldn't get any device except my laptop back online . I had to call linksys support and pay for someone to go on my laptop remotely and spend about an hour for them to get it workimg, it would not accept the passwords that were supposed to be the default. Anyway after he got it going again he said he thinks he knows why I was having the problem in the first place so he asked me to go to the control panel and click administrative tools and something else and to click on errors warnings and critical and it shows that bot my computers have thousands of these error and warnings in them and I don't know what they are and how they got there and how to get rid of them and keep it from happening again.