Key Takeaways

Yes, you can have two routers in one house, but running both at once usually causes more problems than it solves.
Two routers broadcasting Wi-Fi in the same home interfere with each other, which leads to slow speeds, buffering, and dropped connections.
The fix in most homes is quick: unplug the second router and restart your devices.

So you’ve got two routers in one house, and your internet is suddenly slower than it should be. You’re not imagining it, and you’re not alone.

It usually happens during a switch. You set up your new internet, but you leave the old equipment plugged in, maybe to test the new service before fully committing, maybe just because you haven’t gotten around to unplugging the old box. Either way, you now have two routers running at once.

Here’s the catch: two routers side by side don’t share the work. They compete. And that competition is exactly what’s dragging your speeds down.

Why Two Routers in One House Cause Problems

It comes down to airspace. Wi-Fi travels on a limited set of channels, and when two routers broadcast in the same home, they crowd that space and step on each other.

Picture two people shouting across the same room at once. You can tell something’s being said, but you can’t make out either one. Your devices hit the same wall, and that interference alone is enough to slow most of them down.

It gets worse when both routers share the same network name. It’s like having two people named John in the room. Call out “John” and they both turn around, and you can’t reliably reach the one you want.

Your devices do the same thing, bouncing back and forth between the two routers and dropping the connection for a second every time they switch. Do that all day and you get exactly what you’re seeing: video that buffers, pages that hang, and devices that fall offline for no reason.

The good news is what this means. Your new service isn’t broken. It’s just fighting for room. Take one router out of the equation and the interference goes away with it.

Does This Sound Like Your Setup?

If you’ve got more than one router in your home, or you recently switched providers, watch for these:

Slow speeds that don’t match what you’re paying for

Video that buffers or drops quality during streaming

Devices that disconnect and reconnect on their own

Some rooms fast, others barely working

Connections that work for a while, then stall for no clear reason

Any of these is a strong sign two routers are competing in your home.

The Fix Takes About Five Minutes

Find the second router. This is usually the older box from a previous provider or a setup you’re no longer using.

Unplug it. Disconnect it from power and from the wall. If it belonged to another provider, set it aside to return to them.

Restart your devices. Power your phones, laptops, and other devices off and back on so they reconnect cleanly to the one network that’s left.

With only one router broadcasting, the interference disappears and your devices have a single, clear connection to lock onto. The slowdowns and dropouts almost always go away.

One strong network beats two weak ones.

Your internet works best when it has your home’s airspace to itself. Race delivers fast, reliable fiber with no data caps and no contracts, built to handle a full house of devices on a single connection.

Check Availability

Still seeing issues? Call us at 877.722.3833 and we’ll get you sorted.

Frequently Asked Questions

Can you have two routers in one house?

Yes, you can, but in most homes you shouldn’t run both at the same time. Two routers broadcasting Wi-Fi in the same space interfere with each other and tend to cause slow speeds and dropped connections. There are setups where two routers work together intentionally, but that takes specific configuration. Two separate routers simply left running side by side will usually compete rather than cooperate.

Will a second router make my Wi-Fi faster?

Usually the opposite. Adding a second router that broadcasts its own Wi-Fi tends to create interference rather than extra speed. If you’re trying to extend coverage to a far room or a second floor, a mesh system or an access point designed to work with your main router is a better solution than a second standalone router.

Why does my internet slow down with two routers in one house?

The two routers crowd the same Wi-Fi channels and interfere with each other, like two people talking over each other in the same room. If both use the same network name, your devices also bounce between them and briefly lose connection each time they switch. The result is slower speeds, buffering, and dropouts.

How do I know which router to unplug?

The one to remove is usually the older unit from a previous provider or a connection you’re no longer paying for. If you’ve recently switched internet providers, it’s the equipment from your old service. When in doubt, give us a call and we can help you identify it.

Is it ever okay to keep the second router plugged in?

In a few cases, yes. If you still have phone service through an old provider and are waiting on a number transfer, you may need to keep that equipment on until the port completes. Outside of situations like that, running a second router usually does more harm than good.