If I get a ! and "No Internet Connection," is it almost always the router?

[oxband]

I'm staying in a home where the internet works fine for hours and then every now and the I get the "!" and the message "No Internet connection." Then, after some time, it starts working OK again.

Is this always a router problem? Is it possible it is something on my computer that does this?

 

[iabacus]

Could be your service provider

My Internet service provider was unreliable, and would go out for a few hours at a time. I would receive that same message. I would unplug/restart your router, and toggle your wifi off and on. If it doesn't fix the problem, then it's probably out of your control.

 

[WesCole]

It probably is your ISP...try resetting the modem. Also, if it still happens, try switching to a different channel on your router.