If your modem allows you to connect but not your router, try restarting. Update the firmware if restarting doesn't work, then obtain a new router if that still doesn't work. Installing a different firmware on the router is one thing I've done when I didn't want to spend the money on a new one. Although you'll need to verify, the latest firmware typically include updates or modifications to Linux or other system drivers that improve system stability. However, simply purchase a new router—they're affordable, and the hardware will improve the efficiency of your network.

Cox Internet Troubleshooting

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