One router rarely covers a whole house. Thick walls, a second floor, or a garage office can leave you staring at one bar of Wi-Fi. If you have an old router sitting in a drawer, you can put it back to work. It takes about twenty minutes to connect router to router and stretch your network into those dead spots.
You'll need two routers, an Ethernet cable, and a computer. The steps below cover whether the setup makes sense for you, what to prepare, how to configure both routers, and what to try if cabling isn't an option.
Can You Have Two Routers In One House
Yes, you can, and it's a common fix for weak Wi-Fi. The classic setup is 2 routers 1 modem. Your main router stays connected to the modem and runs the network. The second router plugs into the first with a cable and acts as an extra access point.
All your devices share one network, so printers and smart speakers still find each other. You can also run the second router as a separate network for guests or a home lab. Most homes are better off with the access point setup, though.
Essential Prerequisites When Hooking Up a Router to a Router
Before hooking up a router to a router, gather a few basics. Nothing here is expensive, and you may already own all of it. Having everything within reach saves you from running back and forth between rooms. These three items are all it takes to finish the job in one sitting.
Two Routers
You'll need your main router, the one already connected to your modem, plus a second router. The second one can be an older model, as long as it still powers on and gets firmware updates. Check its Wi-Fi standard too. An old Wireless-N router will slow down newer phones that connect to it.
The best results come when a wireless router to wireless router link is made with a cable rather than over the air. A wired link keeps your full speed, while a wireless link can cut it roughly in half. Look in the second router's settings for an "Access Point" or "AP mode" option as well. Many newer routers include it, and it handles several of the steps below automatically.
Ethernet Cables
You'll need one Ethernet cable long enough to reach from the main router to the spot where the second router will live. Cat6 is a great choice. It handles gigabit speeds with ease and works up to 100 meters per run. Cat5e works too, but it leaves less room for future upgrades.
Measure the path before you buy. Count the turns around doors, along baseboards, and through walls. Add a few extra feet for slack, since a cable pulled tight can work loose over time. A short patch cord is also handy for connecting your computer during setup.
Computer
A laptop or desktop with an Ethernet port makes setup much easier. If your laptop doesn't have one, a USB-to-Ethernet adapter costs very little. You'll use the computer to log in to the second router's settings through a web browser.
Some newer routers skip the browser and use a phone app instead. That works fine too. Either way, have the admin username and password for both routers ready. They're usually printed on a sticker on the bottom of each router.
How To Connect A Router To A Router Modem
The setup follows five steps. You'll prepare the second router, change its IP address, turn off DHCP, connect the cable, and then test everything. Do them in order. Changing settings before the cable goes in prevents the two routers from fighting over which one is in charge of your network.
Step 1: Prepare the Second Router
Start with a clean slate. An old router may still carry settings from its last home, and those can clash with your current network. You'll reset it to factory defaults and then connect a computer to reach its settings page. Both jobs take only a few minutes, even on an older router.
Reset the Router
Plug in the second router and let it boot fully. Find the small reset hole on the back. Press and hold the button inside with a paperclip for about 10 to 30 seconds, depending on the brand. The lights will flash and the router will restart.
This wipes old passwords, IP settings, and Wi-Fi names. Skipping it is the most common reason this project fails. I once spent an hour chasing a "broken" network before realizing the old router still had a leftover static route from its previous owner.
Connect a PC
Keep the second router unplugged from your main router for now. Connect your computer to one of its LAN ports with an Ethernet cable. Then open a browser and type the router's default address. It's usually 192.168.0.1 or 192.168.1.1, and it's printed on the label.
Log in with the default username and password from the same sticker. If the router offers a setup wizard, you can skip it for now. You only need to reach the main settings menu for the next two steps.
Step 2: Change the Second Router's IP Address
Both routers can't share the same address. If they do, your devices won't know which one to talk to. First, check your main router's IP address. On many routers, that's 192.168.1.1. Then look at its DHCP range, which might run from 192.168.1.100 to 192.168.1.199.
In the second router's LAN settings, set its IP to an unused address in the same range but outside the DHCP pool. For example, 192.168.1.2 works perfectly in this setup. Keep the subnet mask at 255.255.255.0. Save the change when you're done. The router will restart, and you'll need to type the new address into your browser to log back in. Write that address down, since you'll use it whenever you want to change settings later.
Step 3: Disable DHCP on the Second Router
DHCP is the service that hands out IP addresses to your devices. Your main router already does this job. If the second router does it too, two devices will hand out conflicting addresses, and your network will act strangely. Phones may connect without internet, or printers may vanish.
Log back in to the second router at its new address. Find the DHCP server setting, usually under LAN or Network settings, and turn it off. Save and let the router restart. From now on, the main router assigns every address, even for devices connected to the second router. If your router has an Access Point mode, switching it on often disables DHCP for you.
Step 4: Connect the Two Routers Together
Now it's time for the cable. Plug one end into a LAN port on your main router. Plug the other end into a LAN port on the second router, not its WAN or Internet port. This LAN-to-LAN link is what lets you bridge router to router and keep everything on one network.
Using the WAN port instead creates a second network inside the first. That's called double NAT, and it can cause trouble with gaming, video calls, and smart home apps. Next, set up the second router's Wi-Fi. You can use the same network name and password as your main router for easier roaming. You can also give it a different name if you prefer to choose which router your devices use.
Step 5: Testing and Verification
Don't call it done until you've tested it. A quick check now saves frustration later, when a smart plug suddenly refuses to connect. You'll connect a few devices, confirm they're on the right network, and see how fast the connection really is in each room of the house.
Connect Devices
Walk over to the second router's area with your phone. Turn Wi-Fi off and back on, and then join the network. Open a website to confirm the internet works. Try a laptop and a smart TV as well, since different devices sometimes behave differently.
If a device connects but has no internet, recheck Step 3. A DHCP server that's still running on the second router is the usual culprit. Also make sure the cable is in a LAN port on both ends.
Verify Network Range
Every device should get an address from your main router. On a Windows computer, open Command Prompt and type ipconfig. On a Mac, check the network section in System Settings. The IP address should start the same way as your main router's address, such as 192.168.1.x.
Look at the default gateway too. It should match your main router's IP, not the second router's. You can also open your main router's client list. Devices connected through the second router should appear there, which confirms everything sits on one network.
Performance Monitoring
Run a speed test near each router with a site like speedtest.net or fast.com. Results close to your internet plan's speed mean the link is healthy. Then test the rooms that used to have weak Wi-Fi.
If speeds are lower than expected, check your Wi-Fi channels. On the 2.4 GHz band, set the two routers to different channels, such as 1 and 11, so they don't interfere. On 5 GHz, pick channels that are far apart as well. Recheck your speeds over the next few days, since problems sometimes appear only at busy times.
Alternative Solutions
Running a cable between rooms isn't always possible. Maybe you rent, or the second router needs to sit on a different floor with no easy path for wiring. Thankfully, you have other options for spreading Wi-Fi through your home. Here are the two most popular choices and the tradeoffs that come with each one.
Wi-Fi Range Extenders
A range extender picks up your router's signal and rebroadcasts it farther into the house. If you'd rather connect wifi to wifi router coverage without running any cable, an extender is the simplest option. Most plug straight into a wall outlet and pair with your router at the press of a button.
There's a catch, though. Many extenders use the same radio to receive and resend data, which can cut your speed roughly in half. Placement matters a lot too. Put the extender about halfway between the router and the dead zone, where the signal is still strong. Too far away, and it just repeats a weak signal.
Mesh Wi-Fi Systems
A mesh system replaces your router with two or three matching units that work as one network. They share a single Wi-Fi name and hand your devices from one unit to another as you move around. Setup usually takes ten minutes through a phone app.
Mesh costs more than reusing an old router, but it's the smoothest option for large or multi-story homes. Many mesh units also support wired backhaul. That means you can connect the units with Ethernet cables for the best speed while still enjoying easy app management. A Wi-Fi 6 or Wi-Fi 7 mesh kit is a solid upgrade if your current router is several years old.
Extend Your Wi-Fi to Every Corner Today
A solid wifi router to wifi router configuration gives you stronger Wi-Fi in every room. Reset the second router, change its IP, turn off DHCP, and connect LAN to LAN. Test each room afterward. When cabling isn't possible, an extender or mesh system can fill the gaps instead.
Shop Cat6 and Cat6a Ethernet cables and patch cords at TS Cables, and link your routers with a connection built to keep up with every device.
FAQs
Can I connect two routers without an Ethernet cable?
Yes, many routers support wireless bridge or repeater mode. It works without cables, but speeds usually drop, so a wired connection is still the better choice.
Should both routers use the same Wi-Fi name?
Using the same name and password lets devices move between routers more easily. Different names give you more control over which router each device joins.
Why do my devices have no internet on the second router?
The second router is probably still running DHCP or connected through its WAN port. Turn off DHCP and use a LAN-to-LAN cable connection.
Does using two routers slow down my internet?
Not when they're connected with a cable. A wired link keeps your full speed. Wireless bridging and some extenders can cut speeds roughly in half.
Can I use routers from different brands?
Yes, brand doesn't matter for this setup. Any router that lets you change its IP address and turn off DHCP will work as a second access point.
Further Reading
There's more to explore on our blog, from Ethernet cables and PoE to switches and Wi-Fi upgrades. Read a few posts and start planning your next network improvement.
- WiFi 7 vs WiFi 6: What's the Difference?
- Is It Bad to Have Two WiFi Routers?
- How Does the Weather Affect Your WiFi Connection?
- What is a Wireless Access Point (WAP)?
- Wi-Fi vs. Ethernet: Which Offers the Ultimate Internet Experience?
- Commercial WiFi Installation: How to Set Up (2026)
- What’s the Difference? Hub vs. Switch vs. Router
