Kicked from online game regularly

I play online games and keep getting kicked off every 10 - 30 minutes.  The code that comes up says it is a problem with my network.  There are no warnings when I get kicked.  It'll be in the middle of a game or in the title screen.  Others in my household are not having the same issues.  When I run the diagnostic from Xfinity it says there have been no interuptions to our internet service.

Are the any solutions or things I should check for?