How do I hook my netgear router to my comcast modem?

On the back of the comcast modem (usually a square RCA, but it could be different) there is a place to plug in your ethernet cable. Plug the other end of the ethernet cable into the router where it says LINE IN or IN. Now, this is important.

Unplug them both. Then plug in the Modem first. It will do its diagnostics and the lights will flicker for 30 seconds, but eventually it will go to a steady rhyhmic blink.

This tells you that the modem has itself gotten an IP address from Comcast. Then, and only then, plug in the router. It will also go through a bunch of diagnostics, but then you will see some rapid flickering as it gets assigned its own (router level) IP address.

When that flickering is all over, either plug a different ethernet cable into your PC (and the other end to one of the places on the router) or try the wireless. 1) if your router had been used as a hub or switch previously (i.e. It is a used router) then you will have to reset the router to factory configuration in order to clear that hub setting.

This is unlikely but possible. 2) You will want to go into Netgear's admin to set up the wireless network name, channel, and security. Go to Netgear's web site to download the manual and see how to log in and set these configurations.

One way to be sure that you are getting a good signal from Comcast is to plug the cable from the modem directly into the PC (turning both off and on as described above). If that works, you have proved that the signal is good and the router is the culprit. If it doesn't work, then you have an issue with Comcast.