Internet issues, please help me?

[Landon]

I have always had this problem... When the little "!" Icon appears on my internet symbol (bottom right of pc) I have to run the troubleshooter. It ALWAYS says "Resetting "Wi-Fi" adapter. I got a new computer recently, and it also says resetting "Wi-Fi" adapter. Is something wrong with the COMPUTER? It also says this- "The connection between your access point, router, or cable modem and the internet is broken"

Please help me!

Other details: I just got a new modem that is top of the line.
I have a good router, but might it be broken?

Recently I ran the troubleshooter, and it said this:
"The default gateway is not available"
I TAKE IT BACK- It doesn't always say "resetting "Wi-Fi" adapter" it is saying other things, like the gateway (read above) and this:
"The DNS server is not responding"
I lose connections to my games every 5 minutes or so because of this!
Admin/Tech- IF YOU READ THIS! How do I do that? I am very new to Windows 8. I mean, I am a DAY into using it.