Who’s on My WiFi? Here’s How to See Every Connected Device & Block Intruders

Is your internet running slower than usual? Are you noticing unusual activity on your network? If so, you might be wondering: who’s on my WiFi – and how do I stop them? Unwanted users can slow down your connection, compromise your security, and even put your personal data at risk.

Fortunately, there are simple ways to see all the devices connected to your WiFi, identify intruders, and take action to secure your network. In this guide we’ll walk you through the best methods to detect, block, and prevent unauthorized access – step by step.

Why It’s Important to Monitor Your WiFi Network

Your WiFi network is the gateway to your digital life. When unauthorized users gain access, they can cause more damage than you might expect – from everyday annoyances to serious security risks:

• Slow down your Internet speed. Extra devices on your network consume bandwidth, leading to lagging video calls, buffering streams, and slower downloads. If your connection feels sluggish despite having a fast plan, an unknown device could be the culprit.
• Compromise your security. Hackers or unknown users can exploit network vulnerabilities to access personal data, including sensitive files, passwords, and even connected smart home devices.
• Increase your data usage. If you have a limited data plan, extra users can push you past your cap – resulting in throttling or unexpected charges.
• Engage in illegal activity. Unauthorized users could use your connection for illegal downloads or malicious activity, which could be traced back to your IP address.

The reality is that most home networks reveal far more than their owners realise. Monitoring your network regularly – with automated alerts and device tracking – helps you catch problems early and ensures only trusted devices stay connected. Running a network discovery scan is the simplest way to start — if you’re new to home network cybersecurity, even that single step can make a significant difference.

Signs Someone Is Stealing Your WiFi

Before you check who’s connected to your network, it helps to know the warning signs. If someone is stealing your WiFi, you’ll often notice several red flags – even before running a network scan.

1. Unusually slow Internet speeds
If your connection has suddenly slowed down – buffering videos, lagging video calls, or sluggish downloads – it could mean extra devices are consuming your bandwidth. While ISP issues can also cause slowdowns, a persistent drop in speed with no explanation is one of the most common signs someone is using your WiFi without permission.

2. Frequent disconnections
Does your WiFi keep dropping, especially at certain times of day? Unauthorized users competing for bandwidth can cause frequent interruptions and even force your own devices to disconnect.

3. Higher-Than-Expected Data Usage
If your ISP reports data overages – or your monthly usage dashboard shows a spike you can’t explain – someone else may be riding your connection.

4. Router Indicator Lights Flickering When No One’s Online
When all your known devices are turned off or disconnected, your router’s WiFi activity light should be relatively still. If it’s blinking rapidly, data is being transmitted – possibly by an intruder.

5. Strange Activity or Security Alerts
Receiving password reset emails you didn’t request, or noticing that your router settings have been changed? These could be signs that someone has not only connected to your WiFi but is also attempting to access your accounts or compromise your router.

If any of these sound familiar, it’s time to scan your network and find out exactly who’s connected. The fastest way to do that is with Fing.

How to See Who’s on Your WiFi with Fing

The easiest way to see what devices are connected to your WiFi is with a dedicated network discovery tool like Fing. Unlike basic router admin pages that show cryptic hostnames and MAC addresses, Fing identifies each device by brand, model, and type – powered by a device recognition engine built on over a decade of machine learning

Fing offers three products, each suited to a different need:

• Fing Mobile – Perfect for quick, on-the-go scans from your phone. Open the app, tap scan, and see every device on your network in seconds. Ideal when you want a fast snapshot.
• Fing Desktop – The full-featured scanner for Windows and Mac. It runs automated checks while active, provides detailed device insights, and lets you block intruders directly.
• Fing Agent – For true 24/7 network monitoring, even when your computer is off. Install Fing Agent on a Raspberry Pi, NAS, or Docker container and it continuously watches your network, sending you alerts whenever a new or unknown device connects.

Here’s how to run your first scan and identify who’s on your WiFi:

1. Download and install Fing – choose Fing Desktop for your computer or Fing Mobile for your phone.
2. Create a free account.
3. Run a network scan – within a few seconds, Fing will display a complete list of all devices connected to your WiFi.
4. Analyze the device list — each entry shows the device brand and model, IP address, MAC address, and manufacturer details, making it easy to tell your smart TV from an unknown laptop.
5. Flag any unknown or suspicious devices – if you see something you don’t recognise, Fing lets you label it for follow-up or block it immediately (with a subscription).

For always-on protection, pair your scan with Fing Agent: it monitors your network around the clock and alerts you the moment an unfamiliar device joins – so intruders never go unnoticed, even while you sleep.

How to See What Devices Are Connected to Your WiFi Without an App

Don’t want to install an app? You can also check who’s on your WiFi directly through your router’s admin panel. Here’s how to do it on any router:

Step 1: Find Your Router’s IP Address
Open a web browser on any device connected to your WiFi and type your router’s IP address into the address bar. The most common addresses are:

• 192.168.1.1
• 192.168.0.1
• 192.168.2.1
• 10.0.0.1

Not sure which one is yours? On Windows, open Command Prompt and type ipconfig – look for “Default Gateway.” On Mac, go to System Preferences > Network > Advanced > TCP/IP and note the “Router” address.

Step 2: Log In to Your Router’s Admin Panel
Enter your router’s admin username and password. If you’ve never changed these, they’re usually printed on a sticker on the back or bottom of your router. Common defaults include admin/admin or admin/password.

Step 3: Find the Connected Devices List
Navigate to a section usually labeled “Connected Devices,” “Device List,” “DHCP Clients,” or “Attached Devices”. The exact wording depends on your router brand.

Step 4: Review and Identify Each Device
You’ll see a list showing each device’s hostname, IP address, and MAC address. Cross-reference these with your own devices – your phone, laptop, smart TV, game console, etc. Any device you don’t recognize could be an unauthorized user.

Using Command Prompt or Terminal
For a quick check, you can also run the command arp -a in Command Prompt (Windows) or Terminal (Mac/Linux). This displays all IP and MAC addresses currently communicating on your local network. It’s a fast way to get a snapshot, though it won’t give you device names or manufacturer details like Fing does.

💡 Why Fing Is Still the Better Option
While the router method works, it has limitations: device names are often cryptic (e.g., “Unknown” or a random string of characters), and you can’t easily tell a smart bulb from a neighbor’s laptop. Fing uses a patented machine learning technology to automatically identify device brands, models, and types – making it far easier to spot intruders at a glance. See how Fing’s network device discovery works.

How to Block WiFi Intruders Using Fing

Once you’ve identified an unauthorized device on your network, you’ll want to remove it fast. You could dig through your router’s admin panel and set up MAC filtering manually – but Fing gives you a much simpler way to take control of your network.

With Fing Desktop, you can block devices or limit their internet access in just a few clicks. These are advanced security features available exclusively to Fing Premium and Fing Professional subscribers – designed for users who want full, hands-on control over who connects to their WiFi.

How to Permanently Block Unauthorized Devices

If you spot a device that doesn’t belong on your network, you can permanently block it from reconnecting:

1. Open Fing Desktop and run a network scan.
2. Locate the suspicious device in your device list and click on it for more details.
3. Under the “Improve Security” section, click “Block“.
4. The device will be immediately and permanently blocked from accessing your WiFi.

That’s it — no router configuration required. The blocked device won’t be able to reconnect, even if it knows your WiFi password.

Want to automate this entirely? With Auto Block, Fing Desktop or Fing Agent can automatically block any unknown device the moment it connects to your network. Once you’ve tagged all your trusted devices, Auto Block ensures that anything new is denied access by default – giving you zero-effort protection around the clock.

How to Temporarily Limit Internet Time

Sometimes you don’t want to kick someone off your WiFi permanently – you just need to pause their access for a while. Fing’s Limit Internet Time feature lets you do exactly that, and it’s especially useful for:

• WiFi parental controls – Set when your children can access the internet and enforce screen-free hours without arguments.
• Reducing distractions – Temporarily pause WiFi access on specific devices during work or study sessions.
• Managing guest access – Let visitors connect when they arrive, then pause their access when it’s no longer needed.

To pause internet access for a specific device:

1. Open the device details in Fing Desktop.
2. Select “Limit Internet Time.”
3. Choose the duration of the pause – the device’s access will be restored automatically when the time expires.

This feature gives you fine-grained control over your network without permanently cutting anyone off.

How to Kick Someone Off Your WiFi

Found a device that shouldn’t be there? Here’s a summary of all the ways you can kick someone off your WiFi – from the quickest method to the most thorough.

Option 1: Use Fing to Block Them Instantly

As described above, Fing lets you block any device from your network with a single click through the Fing Premium or Fing Professional plan. This is the fastest and most user-friendly way to kick someone off your WiFi – no router configuration needed.

Option 2: Block Their MAC Address on Your Router

Every device has a unique MAC (Media Access Control) address. You can blocklist specific MAC addresses through your router’s admin panel to permanently deny them access:

1. Log in to your router’s admin page (see the section above for how to find it).
2. Navigate to MAC Filtering, Access Control, or Wireless MAC Filter – the exact name varies by brand.
3. Add the MAC address of the device you want to remove to the blocklist.
4. Save your settings. The device will be kicked off immediately and won’t be able to reconnect.

Option 3: Change Your WiFi Password

If you’re unsure which specific device to block – or if multiple unauthorized users have access – changing your WiFi password is the nuclear option. It disconnects everyone, and only people who know the new password can reconnect. We’ll walk through this method in detail in the next section.

If you’re unsure which specific device to block – or if you suspect multiple unauthorized users have access – changing your WiFi password is the nuclear option. It disconnects every device at once, and only those who know the new password can reconnect.

Here’s how to do it:

1. Open a browser, go to your router’s admin panel and log in with your admin credentials.
2. Navigate to Wireless Settings (or WiFi Configuration, depending on your router brand).
3. Create a strong new password using a mix of uppercase and lowercase letters, numbers, and symbols.
4. Save your changes – all devices will be disconnected immediately.

After the reset, reconnect only your trusted devices with the new password. It’s a clean slate, but keep in mind you’ll need to re-enter the password on every device in your household – smart TVs, security cameras, thermostats, and all.

For a more targeted approach that doesn’t disrupt your entire network, blocking individual devices with Fing is faster and far less disruptive

Option 4: Disable and Re-enable Your WiFi

As a temporary quick fix, you can turn off your router’s WiFi radio for a few minutes. This disconnects all wireless devices. When you turn it back on, unauthorized users won’t automatically reconnect if you’ve changed the password in the meantime.

Pro tip: After kicking someone off your WiFi, take a moment to strengthen your security. Enable WPA3 encryption, disable WPS, and consider hiding your SSID – all covered in the tips section below.

Additional Tips for Securing Your WiFi Network

In addition to scanning and blocking intruders, follow these best practices to secure your WiFi network and reduce the risk of unauthorized access:

• Enable WPA3 or WPA2 Encryption
  Make sure your router is using WPA3 (or WPA2 if WPA3 is unavailable) for strong wireless security. Avoid WEP encryption – it’s outdated and can be cracked in minutes.
• Turn Off WPS (WiFi Protected Setup)
  WPS allows devices to connect using a simple PIN instead of a full password, making it a known vulnerability. Disable it in your router’s settings unless you actively need it.
• Consider Hiding Your SSID (WiFi Network Name)
  Hiding your SSID prevents your network from appearing in public WiFi lists, which can deter casual freeloaders. Keep in mind that this won’t stop determined attackers – treat it as an extra layer on top of a strong password and proper encryption, not a standalone fix.
• Regularly Update Your Router Firmware
  Router manufacturers release firmware updates to patch security vulnerabilities. Log into your router’s admin panel periodically to check for updates – or enable automatic updates if your router supports them.
• Use a Guest Network for Visitors
  Set up a separate guest network with its own password. This keeps visitors off your primary network and prevents them from accessing your personal devices, shared files, or smart home systems.

💡 Bonus tip: Run a Router Security Check with Fing
Not sure if your router is properly configured? Fing Desktop includes a built-in Router Security Check that evaluates your setup for open ports, DNS hijacking risks, and other common vulnerabilities – so you don’t have to guess. For a deeper dive into WiFi security fundamentals, check out our home network cybersecurity guide.

WiFi Security Tips for Popular Router Brands

While the security tips above apply universally, here are some brand-specific pointers to help you navigate your router’s settings more easily:

TP-Link Routers
Log in at tplinkwifi.net or 192.168.0.1. Navigate to Wireless > Wireless Security to enable WPA3/WPA2. You can also enable MAC Filtering under Wireless > Wireless MAC Filtering and manage access control via the Tether app on mobile.

Netgear Routers
Access your settings at routerlogin.net or 192.168.1.1. Under Advanced > Security > Access Control, you can enable device blocking and create an allow/blocklist. Netgear’s Nighthawk app also provides device management on the go.

D-Link Routers
D-Link users can manage connected devices and block unauthorized users through the mydlink app or web portal – note that your router must be registered to a mydlink account for remote management.

Huawei Routers
Navigate to More Functions > Manage Device to view all connected devices. From here you can blocklist specific phones or computers directly.

ISP-Provided Routers (e.g., Xfinity, Sky, BT)
Many ISP-provided routers have simplified admin panels. Look for a “Connected Devices” or “Device Manager” section, often accessible through the ISP’s own app. If your ISP router has limited security options, consider adding Fing to fill the gap with advanced device identification and blocking features.

No matter which router you use, pairing it with Fing gives you a single, unified dashboard to see all devices connected to your WiFi and take action – regardless of your router brand or model.

Secure Your Network Today with Fing

If you’ve made it this far, you now know how to see who’s on your WiFi, identify every device connected to your network, kick intruders off, and lock your network down for good. The only question left is: are you doing it manually – or letting Fing handle it for you?

Fing is the network scanner trusted by over 30 million users worldwide. Built on more than a decade of machine learning-powered device recognition, Fing doesn’t just show you a list of IP addresses – it tells you exactly what’s on your network, who it belongs to, and whether it should be there.

Here’s what you get:

✔️ Instant network discovery and inventory – see all devices connected to your WiFi in seconds.

✔️ Accurate device identification – brand, model, and type for every device, powered by the industry’s largest recognition catalog.

✔️ Block WiFi intruders – remove unauthorized devices with a single click.

✔️ Parental controls & internet scheduling – pause access or set time limits on any device.

✔️ 24/7 monitoring with Fing Agent – get alerts whenever a new device connects, even while you sleep.

✔️ Available everywhere – Fing Mobile for iOS and Android, Fing Desktop for Windows and macOS, and Fing Agent for Raspberry Pi, NAS, or Docker.

Get started for free – or unlock advanced WiFi security features like Block, Auto Block, and continuous monitoring with a Fing Premium or Professional plan.

Take control of your WiFi today. Because when you know exactly what’s on your network, you’re already safer.