There is no single number
Routers have two kinds of limit: a technical one and a practical one. The technical limit is how many devices the router can give an address to and keep track of. The practical limit is how many it can serve well at the same time, which depends on what those devices are doing.
The technical limit
Most home routers use a private address range that allows roughly 250 devices by default (a typical setup like 192.168.1.x). Many routers set their own cap on Wi-Fi clients, and some list a figure in their specifications or support pages. Cheaper or older models may have a lower real limit. Check your router’s manual or the maker’s support site for your model number rather than relying on a general figure.
The practical limit
The number of connected devices matters less than how busy they are.
- Idle or low-traffic devices such as smart bulbs, plugs, sensors and speakers use very little bandwidth, although each one still takes up a connection.
- Busy devices such as 4K streams, game downloads, cloud backups and video calls use much more.
- Router hardware. Processor and memory decide how well a router copes with many connections at once, and newer routers generally handle many devices better.
- Wi-Fi standard. Newer standards are designed to handle many devices more efficiently. See our Wi-Fi router speeds chart.
- Your plan. Everyone shares the same internet connection. A 500 Mbps plan split between several streams and downloads is usually fine, but a very slow plan will feel crowded quickly.
Some sources suggest that a typical home router copes comfortably with a few dozen active devices and that newer or mesh systems manage more. Treat these as rough guides only.
How to see what is connected
- Log in to your router’s settings (the address and login are usually printed on the router label or in its app).
- Look for a page named Attached Devices, Device List, Clients or similar.
- Check names and addresses. Anything you do not recognize deserves a closer look, and changing the Wi-Fi password is a sensible response if you find an unknown device.
Your router’s mobile app, if it has one, often shows the same list along with how much traffic each device is using.
Signs you have too many devices
- Slowdowns when many people are online at the same time
- Devices failing to connect or getting dropped
- Smart gadgets going offline
- The router needing regular restarts
If the router actually crashes or reboots, see our guide on a router crashing with too many connections.
How to fix a crowded network
- Move devices to Ethernet where possible, such as TVs, consoles and desktops. This frees up Wi-Fi capacity.
- Use both bands. Put distant or low-bandwidth gadgets on 2.4 GHz and faster devices on 5 GHz. Our guide to dual-band vs tri-band routers explains when a third band helps.
- Remove devices you no longer use from the network list (see how to remove devices from a Linksys router for one example) and forget old networks on devices.
- Update the firmware on the router.
- Restart the router to clear a bad state, and consider whether it needs a regular schedule.
- Upgrade the router if it is old (see how to tell if your router needs an update). A newer model, or a mesh system, handles more devices and covers more space.
- Use QoS features to prioritize important traffic, though on some routers this can reduce overall speed. Our Netgear slow-internet guide covers this setting.
Can I increase the number of devices?
You cannot normally raise a router’s built-in limit with a setting. Options are to add an access point (see whether multiple routers affect speed), use a mesh system, or replace the router with a more capable model. In some routers you can change the address range size, but that rarely fixes real-world slowdowns.
How many routers do I need?
Most homes need one good router. Add a wired access point or a mesh system if the signal does not reach everywhere. More routers do not by themselves increase how many devices your network handles, and they should be set up carefully.
How many devices can a 500 Mbps plan support?
There is no exact number because it depends on activity. As an example, a few simultaneous HD or 4K streams plus some browsing and video calls generally fit within 500 Mbps for many households. Look at the streaming services’ own recommendations for their per-stream needs, and see does your router or modem affect internet speed if you are not getting your plan speed.