Connecting to Xbox Live breaks my internet/router?

So, I use a Dlink DIR-615 router, and I was happily using it with my Xbox. Until now for a couple of months. I can download something at a certainly good speed and it doesn't disconnect me. I go play some games and it randomly disconnects me from Xbox Live.
Actually, it breaks my internet. Internet doesn't work on the Xbox 360 neither on my computer until I restart my router. The internet works perfectly on my PC without any problems. Any ideas?

:)

 

Quantum Break's cutscenes require internet connection - Streamed video

http://www.pcgamesn.com/quantum-bre...cutscenes-will-require-an-internet-connection

Feel sorry for them gamers with slow connection..

 

Got an Xbox One, dead upon arrival.

I wonder if mine is about to break sometimes it turns on and takes forever to connect to Live. I have to go to settings and it says no internet connection. I have to wait and then it will connect to my router. It is annoying.

 

Fixed by changing the wireless channel to 802.11g only.