No Internet From Second GS108 v4

[Idekanymore]

I am having trouble establishing connection to the internet through my network switches. My Nighthawk AC6900 is down stairs, and I use a couple of switches to get the internet to my upstairs office. Currently the network is set up as follows:

Fiber Modem--> Router--> Switch 1 (GS108v4)-->Switch 2 (GS108v4)-->Computer 1

                                                                                                                |->Copmputer 2

Both computers will recognize they are connected to the router, but will not have internet access. I'm not sure what I am doing wrong, newbie with network stuff. Any advice would help.

Thank you!

[plemans]

Start at basics and test each step of the way.

Direct connect a pc/laptop to the router. See if it connects/works. 

If it does, then direct connect to the wire feeding the 1st switch.

works? Then connect to the switch. 

See where I'm going with this? 
It could be router, it could be cable, but you need to test each step to see where its failing.