While you can use a router to connect to other connected devices without a modem, in order to access the internet, you’ll also need a modem and an internet service provider (ISP). Ensure that your modem is correctly configured and that an Ethernet cable is securely connecting it to the router’s yellow port. If you can access your Wi-Fi network but can’t access the internet, your modem probably needs to be troubleshooted.
If you are unable to connect to the router’s network at all, one of the following possibilities may apply:
- physical things or other devices interfering
- Your password either doesn’t work anymore or was altered.
- The firmware on your router is outdated.
- Hardware problems such as a defective capacitor or antenna
- Your router’s IP address is incorrect.