I just built a PC for my brother and he is using an old linksys WRT110 router I gave him. He has an ASRock H77 Pro4/MVP mobo with gigabit internet. I never had problems with the router until I myself got an ASRock Z77 Pro4 mobo with gigabit internet. I had the money to buy a gigabit router and that seemed to fix my problem, but my brother doesn't have the money. Every time we power cycle the modem and router, we have internet for about 2 minutes, then it cuts out. We lose the internet for both wifi devices and the hardlined desktop. I had him bypass the router, and internet works fine for the desktop. He has no money and doesn't need a gigabit router, but is there compatibility issues with a non-gigabit router and a mobo with gigabit lan? The problem with the router arose once we had gigabit lan...but I didn't think that should matter. I am also wondering if the issue could be related to intel smart connect software? Any help would be appreciated. We have a cable ISP. Thanks!