Why is it only my laptop that has trouble with internet?

[Timothy]

I bought a gaming laptop awhile ago and it has always had some trouble with internet connections for some reason. I just chocked it up to being very picky about connections and just kept it connected via wired means. We recently got a brand new router and modem so i thought that might fix the problem, however it just made it worse. Now even when hooked up through ethernet i get maybe 5 minutes of good connection before losing it again. I checked with the others in my house and they all have perfect connections, better even when compared to my gaming laptop. I defragged, virus scanned, and ran through all the modem steps to restart and still no luck. So i was wondering if anyone had any ideas as to why i am having so many problems.