cm500 modem connects to ethernet on computer but cannot connect through router

[chellesmeow]

Hi, I just bought a CM500 modem to replace an outdated surfboard. I can connect if I use the ethernet port on my computer but when i try to connect to my router (and then connect the router to the ethernet port on my computer) I have no internet connection and the orange light blinks on the modem for the ethernet. Please help, I'm not overly computer savvy and this seems like I need a fix thats probably super easy. My router is a linksys E2500 and I have comcast. THANKS!

[DarrenM]

Hello chellesmeow

Have you tried to factory reset the router since you swapped out modems?

DarrenM

[chellesmeow]

No, I don't know how to do that? I unplugged it and plugged it back in as the modems manual told me to.

[DarrenM]

Hello chellesmeow

You may want to look up how to factory reset your linksys device.

DarrenM