Setting up a Linksys router with a cable is a straightforward way to create a wired or wireless home network. Whether you’re connecting a new Linksys router to a cable modem or using Ethernet to connect your devices, the basic process involves connecting the hardware correctly, powering everything on, and completing the router’s setup.

This guide walks you through the process step by step, including what cables you need, how to connect your Linksys router, and what to do if you don’t get an internet connection.

What You Need to Set Up a Linksys Router

Before starting, gather the following equipment:

• Linksys router
• Cable modem or gateway
• Ethernet cable
• Power adapters for the modem and router
• Computer, laptop, or smartphone
• Active internet service

If your internet provider supplied a modem/router combination, the setup may be slightly different from a standalone cable modem.

Step 1: Turn Off Your Modem

If you’re replacing an existing router or installing a new router, start by powering off your cable modem.

Unplug the modem’s power adapter and wait for about a minute.

This helps the modem establish a fresh connection with the new router after everything is connected.

Step 2: Connect the Modem to the Linksys Router

Take an Ethernet cable and connect one end to the Ethernet/LAN port on your cable modem.

Connect the other end to the Internet/WAN port on your Linksys router.

On many Linksys models, the Internet port is separated from the numbered Ethernet ports.

The basic connection should look like:

Cable outlet → Cable modem → Ethernet cable → Linksys router → Your devices

Do not connect the modem to one of the router’s numbered LAN ports if you’re trying to use the Linksys router as your primary router.

Step 3: Connect the Linksys Router to Power

Connect the Linksys router’s power adapter to an electrical outlet.

Turn the router on if your model has a physical power switch.

Give the router a few minutes to start up.

The indicator lights may blink during startup. Wait until the router has completed its initial boot process before continuing.

Step 4: Connect Your Computer With an Ethernet Cable

For the easiest initial setup, connect a computer directly to one of the Linksys router’s numbered Ethernet ports.

Use another Ethernet cable if necessary.

The connection should look like:

Computer → Ethernet cable → Linksys LAN port

Using a wired connection during setup can make troubleshooting easier because you’re not relying on Wi-Fi.

Step 5: Open the Linksys Setup Page

Open a web browser on the connected computer.

Depending on your Linksys model, you may be able to access the router through:

192.168.1.1

or the Linksys setup address:

myrouter.local

Enter the address directly into your browser’s address bar.

If the Linksys setup page appears, follow the on-screen instructions.

Step 6: Complete the Linksys Setup

The setup process varies between Linksys models, but you may be asked to configure:

• Internet connection
• Router name
• Wi-Fi network name
• Wi-Fi password
• Administrator password
• Security settings
• Firmware updates

Follow the instructions displayed by your specific router.

If your internet provider requires a particular connection type, such as PPPoE, you may need to enter the credentials supplied by your provider.

Step 7: Create Your Wi-Fi Network

During setup, you’ll usually be asked to create a wireless network name and password.

The Wi-Fi name is known as the SSID.

Choose a name that makes your network easy to identify without revealing unnecessary personal information.

For the Wi-Fi password, use a strong and unique password rather than a simple word or easily guessed personal information.

Step 8: Test Your Internet Connection

After completing setup, open a new browser tab and visit a few websites.

If the websites load normally, your Linksys router is connected to the internet.

You can then disconnect the computer’s Ethernet cable if you want to use Wi-Fi instead.

Connect your phones, tablets, smart TVs, gaming consoles, and other devices to the new wireless network.

How to Set Up a Linksys Router Using Ethernet

If by “set up a Linksys router with a cable” you mean setting up the router using a wired Ethernet connection, the process is slightly different.

Connect your devices directly to the router’s numbered LAN ports.

For example:

PC → Ethernet → Linksys LAN port

This provides a wired network connection without relying on Wi-Fi.

Ethernet is particularly useful for:

• Desktop computers
• Gaming consoles
• Smart TVs
• Network storage
• Streaming devices
• Workstations

A wired connection can also provide more consistent performance than Wi-Fi, especially when the device is close enough to the router to support convenient cabling.

Linksys Router Connected but No Internet

If your Linksys router is connected but you can’t access the internet, work through these troubleshooting steps.

Check the Ethernet Cable

Make sure the Ethernet cable from the modem is connected to the router’s Internet/WAN port, not one of the LAN ports.

Also check that the connectors are firmly inserted.

If possible, try another Ethernet cable.

Restart the Modem and Router

Power-cycle both devices.

A common sequence is:

• Turn off the Linksys router.
• Turn off the modem.
• Wait about a minute.
• Turn the modem back on.
• Wait for the modem to reconnect to your internet provider.
• Turn the Linksys router back on.
• Wait for the router to finish starting.

Then test the connection again.

Check Your ISP Connection

Connect a computer directly to the modem with Ethernet, if your internet provider and equipment allow it.

If the computer still can’t access the internet, the problem may be with the modem or your internet service rather than the Linksys router.

Check for Double NAT

If your internet provider supplied a modem/router gateway, that device may already be performing routing functions.

Adding a Linksys router behind it can create a double NAT configuration.

Double NAT doesn’t always prevent internet access, but it can cause problems with:

• Online gaming
• Port forwarding
• Remote access
• Some applications
• Network discovery

Depending on your setup, you may want to place the ISP gateway into bridge mode or configure the Linksys router appropriately.

The exact procedure depends on your ISP’s equipment.

What Do the Linksys Router Ports Mean?

Linksys routers commonly have several types of ports.

Port	Purpose
Internet/WAN	Connects the router to the modem or upstream network
LAN 1–4	Connect wired devices to the router.
Power	Connects the router to its power adapter
USB	Available on some models for supported peripherals or storage

The most important distinction during setup is between the Internet/WAN port and the numbered LAN ports.

Your modem normally connects to the router’s Internet/WAN port.

Can You Set Up Linksys Without Wi-Fi?

Yes.

In fact, using Ethernet can be an excellent way to perform the initial setup.

Connect your computer directly to a LAN port on the Linksys router and access the router’s setup interface through your browser.

After completing configuration, you can use either Ethernet or Wi-Fi.

Can You Use a Linksys Router With a Cable Modem?

Yes. Linksys routers can be used with compatible cable modems and ISP-provided gateway equipment.

The basic arrangement is:

Cable wall outlet → Cable modem → Linksys router → Devices

The modem handles the connection to your internet provider, while the Linksys router manages your local network and can provide Wi-Fi.

However, compatibility and configuration can vary by router and modem model.

Frequently Asked Questions

Which cable connects a modem to a Linksys router?

An Ethernet cable connects the modem’s Ethernet port to the Linksys router’s Internet/WAN port.

Which Linksys port should the modem connect to?

Connect the modem to the router’s Internet/WAN port, rather than a numbered LAN port.

Can I connect my computer directly to the Linksys router?

Yes. Connect your computer to one of the router’s numbered LAN ports using an Ethernet cable.

What address do I use to set up a Linksys router?

Depending on the model, you may be able to use 192.168.1.1 or myrouter.local.

Why does my Linksys router have Wi-Fi but no internet?

The modem-to-router connection may not be working, the modem may not have an active internet connection, or the router may need additional configuration.

Do I need an Ethernet cable for Linksys setup?

Not necessarily. Many Linksys routers can be configured wirelessly, but an Ethernet connection can make initial setup and troubleshooting easier.

Conclusion

Setting up a Linksys router with a cable generally involves connecting your cable modem to the router’s Internet/WAN port, powering both devices on, and completing the router’s configuration through its setup interface.

For a wired connection, connect your computer or other device to one of the Linksys router’s numbered LAN ports using an Ethernet cable.

If you don’t have internet after completing the setup, check the modem-to-WAN connection first, restart both devices, and make sure your internet service is working. If your ISP provided a modem/router gateway, also check whether its existing routing functionality could be affecting your Linksys configuration.