Linksys Router not connecting to internet through switch

Question

I am setting up a new Linksys WRT610N router, and I connected it to my Apple Airport Extreme, and it connected to the internet perfectly. But I set up a Netgear GS108 switch, connected it to the modem, and connected the Apple Airport Extreme and Linksys WRT610 router to the switch and the Apple Airport Extreme works fine like before, but the Linksys WRT610 router does not connect to the internet!

I tried using different LAN cables and plugging the LAN cable to different ports of the switch, but no matter what, the router does not connect to the internet although I can join the wifi network and on the router the green internet circle is blinking.

What happened? Also, I am using a late 2013 Macbook pro if it is a client issue.

Answer 1

Your ISP is only giving you a single IP address. When you put a switch to the modem and connect multiple devices WAN ports to the switch as peers, only one will get an Internet address from the ISP.

You need to pick which layer-3 (routing) device will be your connection to the modem, and any other devices need to be connected behind that device.

Answer 2

If your Linksys router is not connecting to the internet, there are a few things you can check.

• First, make sure your router is plugged in and properly connected to your modem and router.
• Next, make sure your internet is working by checking your ISP’s website.
• If your internet is still not working, you may need to reset your router.
• To reset your router, turn it off and then on again by pressing the reset button.
• If that doesn’t work, you may replace the router.
• You can follow more steps to check if your Linksys router won't work.