Why You Should Know What's on Your Network
Every device that connects to your WiFi — phones, laptops, smart speakers, security cameras, game consoles, even your neighbour's phone if they know the password — uses a share of your bandwidth and sits inside your home network. Knowing exactly what's connected lets you:
- Spot unauthorized devices that might be freeloading on your connection or, worse, accessing shared files and printers.
- Troubleshoot slow speeds by identifying which devices are eating up bandwidth.
- Improve security by finding forgotten IoT gadgets that haven't been updated in months (or years).
- Manage your household — knowing the device list makes parental controls, guest access, and QoS settings far more effective.
Below are the practical ways to see everything on your WiFi, starting with the easiest and moving to more powerful options.
Method 1: Check Your Router's Admin Page
Your router already keeps a live list of every connected device. Here's how to find it:
- Open a browser on a device connected to your WiFi (phone or computer both work).
- Type your router's IP address into the address bar. The most common addresses are
192.168.0.1,192.168.1.1, or10.0.0.1. Not sure which one? On Windows, open Command Prompt and typeipconfig— the "Default Gateway" is your router. On Mac, go to System Settings → Network → your connection → Details → TCP/IP. - Log in with your router's admin username and password. If you've never changed these, they're usually on a sticker on the bottom of the router (common defaults: admin/admin or admin/password).
- Find the device list. Look for a section labelled "Connected Devices," "Attached Devices," "Client List," or "DHCP Client Table." The exact name depends on your router brand.
The list typically shows each device's:
- Hostname — the name the device calls itself (e.g. "Sarah's-iPhone" or "Ring-Doorbell").
- MAC address — a unique hardware identifier for each network adapter.
- IP address — the local address your router assigned it.
- Connection type — whether it's on WiFi (2.4 GHz or 5 GHz) or Ethernet.
If you're not sure which router you have or how to access it, our modem and router guide covers the basics.
Method 2: Use Your Router's App
Most modern routers and mesh systems come with a companion app that makes the device list much easier to read:
- TP-Link Deco — Deco app → tap the network icon → scroll through connected clients. Each one shows real-time speed, total data used, and lets you pause internet access with one tap.
- Google Nest WiFi — Google Home app → WiFi → Devices. Shows bandwidth per device and lets you prioritize or pause.
- ASUS — ASUS Router app → Devices. Groups by WiFi band and wired.
- eero — eero app → Home → tap a device to see activity, usage, and connection quality.
These apps are the quickest way for most people. If your router or mesh system has an app, start there.
Method 3: Scan Your Network With a Free Tool
If your router's list is hard to read (some show MAC addresses but no friendly names), a network scanner fills in the blanks. These tools send a quick ping to every address on your local network and report back what they find.
On a Computer
- Fing Desktop (Windows/Mac, free) — one of the most popular home-network scanners. Shows device name, brand (it identifies manufacturers from the MAC address), IP, and whether the device is new since your last scan.
- Advanced IP Scanner (Windows, free) — lightweight, fast, shows shared folders and allows remote commands.
- Angry IP Scanner (Windows/Mac/Linux, free and open-source) — minimal interface, scans fast, exports to CSV for record-keeping.
On a Phone
- Fing (iOS/Android, free) — the phone version is even easier than the desktop. Tap "Scan" and within seconds you'll see every device, identified by manufacturer and type (phone, computer, smart TV, IoT device).
- Net Analyzer (iOS) / Network Scanner (Android) — good alternatives if you don't want to create a Fing account.
A scan takes seconds on a typical home network. Run one now and you'll probably find a few devices you forgot about — an old tablet, a smart plug, or a streaming stick behind the TV.
Method 4: Use the Command Line
If you're comfortable with a terminal, you can find connected devices without installing anything.
Windows
Open Command Prompt and type:
arp -a
This shows every IP address your computer has recently communicated with on the local network, along with the MAC address and whether it's dynamic or static. To make the output more useful, first ping the entire subnet:
for /L %i in (1,1,254) do @ping -n 1 -w 100 192.168.1.%i > nul
Then run arp -a again to see the full list.
Mac / Linux
arp -a
Same idea. On Linux you can also use:
sudo nmap -sn 192.168.1.0/24
This does a quick ping scan of every address on your subnet and reports the hostname and MAC address for each device that responds.
How to Identify Unknown Devices
You'll probably see a few entries that don't have helpful names — just a MAC address and an IP. Here's how to figure out what they are:
- Check the manufacturer. The first six characters of a MAC address identify the maker. Search "MAC address lookup" online, paste the address, and you'll see something like "Amazon Technologies" (an Echo or Fire Stick), "Tuya" (many smart plugs and bulbs), or "Intel" (likely a laptop).
- Cross-reference the IP. Try typing the IP address into a browser — some devices (cameras, printers, NAS boxes) have a web interface that identifies them immediately.
- Disconnect and watch. If you can't identify a device, temporarily block its MAC address in your router's settings. If something in the house stops working, you've found it.
- Check the count. Walk through your home and list every connected device you know about — phones, tablets, laptops, TVs, speakers, thermostats, doorbells, lights, plugs, garage openers. Most households have 15–25 connected devices. If your router shows significantly more, someone or something unexpected might be on your network.
What to Do If You Find an Unknown Device
Don't panic — most "unknown" devices turn out to be something you own but forgot about. But if you genuinely can't identify one:
- Block the MAC address in your router's access control or MAC filter settings. This immediately kicks the device off your network.
- Change your WiFi password. This forces every device to reconnect, so you can re-verify the list from scratch. Use a strong password — at least 12 characters mixing letters, numbers, and symbols.
- Check for a rogue access point. In apartment buildings, a neighbour's repeater or extender can sometimes latch onto your network if WPS (WiFi Protected Setup) is enabled. Disable WPS in your router settings — it's an old protocol with known security flaws.
For a full security walkthrough, see our home WiFi security guide.
Keeping Track Over Time
Checking once is useful. Checking regularly is how you actually stay secure. A few habits that help:
- Set a reminder to scan monthly. Tools like Fing keep a history, so new devices are flagged automatically.
- Name your devices in your router. Most routers let you assign a custom name to each MAC address. Spend five minutes doing this once and the device list becomes instantly readable.
- Use a guest network. Give visitors and IoT devices their own network so they're separated from your personal devices. Our guest WiFi setup guide walks through the process.
- Enable notifications. Some router apps (Deco, eero, Google Home) can send a push notification whenever a new device joins. Turn this on — it's the simplest early warning system.
When Slow Internet Is Really a Device Problem
If your internet feels slow, checking the device list is often the fastest diagnostic step. Common culprits:
- A device running a large update — Windows, PlayStation, or Xbox updates can quietly consume 20–50 GB.
- Cloud backup running in the background — phones backing up photos to Google Photos or iCloud can saturate your upload bandwidth for hours.
- A smart camera uploading continuously — a single 1080p security camera streams about 2–4 Mbps of upload around the clock. Three or four cameras can max out a typical upload connection.
- Too many devices on the 2.4 GHz band — move laptops and phones to 5 GHz and leave IoT devices on 2.4 GHz. Our troubleshooting guide covers this in detail.
If you need to prioritize certain devices (work laptop, video calls) over others, your router's QoS settings can help. See our QoS guide for setup steps.
Frequently Asked Questions
Can someone connect to my WiFi without me knowing?
If they have your password, yes. That's why checking your device list regularly and changing your password when you suspect unauthorized access are important. Disabling WPS removes the most common backdoor.
Does checking connected devices slow down my internet?
No. Viewing the device list in your router or running a network scan uses negligible bandwidth — far less than loading a web page.
How many devices can my router handle?
Most home routers support 30–50 simultaneous connections without issues. Mesh systems like the TP-Link Deco X55 can handle 100+. If your household has more than 30 connected devices, a mesh system is worth considering. See our smart home WiFi guide for recommendations.
Should I use MAC address filtering to secure my WiFi?
MAC filtering adds a small layer of protection but isn't foolproof — MAC addresses can be spoofed. A strong WPA3 or WPA2 password is your real security. MAC filtering is more useful for managing which devices you allow rather than blocking determined intruders.
What's the difference between the device list and a network scan?
Your router's device list shows everything that has requested an IP address (via DHCP). A network scan actively pings every address on the subnet, which can sometimes find devices the router's list misses — like devices with static IPs or ones that connected briefly and dropped off the DHCP table.
Take Control of Your Home Network
Knowing what's connected to your WiFi is the foundation of a fast, secure home network. Whether you use your router's app, a free scanner like Fing, or a quick command-line check, it takes less than a minute and the information is immediately useful.
If your current internet plan can't keep up with the number of devices in your home, it might be time for an upgrade. Check available plans and speeds on our rates page, or sign up for a plan that matches how your household actually uses the internet.
For more guides on getting the most out of your home internet, browse our Internet Guides hub.