You have connected a new tariff, but the video is on YouTube Is it still slow, and files are taking hours to download? Or do you just want to make sure your provider isn't lying about the service they claim? 100 Mbps? Checking internet speed by Wi-Fi — the first step to solving network problems. But there are pitfalls: readings on a phone and a computer can differ by a factor of 2-3, and browser tests often falsify due to background processes.
In this article we will look at how to measure real Wi-Fi speed — not the one specified in your contract with the provider, but the one your device receives. You'll learn:
- 🔍 Why are cable and Wi-Fi speeds always different (and how to fix it)
- 📱 How to check the speed on Android, iPhone, Windows And Smart TV without unnecessary programs
- 📡 How to see your speed directly in your router settings (even if you don't have access to tests)
- ⚡ What to do if the speed is lower than stated: 5 steps to troubleshoot problems
Important: All methods work for home and office networks. If you are using public Wi-Fi (in a cafe, airport), the results may be underestimated due to network administrator restrictions.
1. Why is Wi-Fi speed always lower than cable speed?
Even if your tariff promises 200 Mbps, you're unlikely to get more over a wireless network 100–150 MbpsThis is not a provider scam, but a physical limitation of the technology. Wi-FiHere are the main reasons:
- 📶 Signal lossWalls, furniture, and even microwaves reduce signal strength. Every meter and obstacle "steals" up to 10-30% of the speed.
- 🔄 Interference from neighborsIf you have 10 routers in your house on the same channel, they will "compete" for airtime, dividing the bandwidth.
- 🔌 Limitations of the Wi-Fi standard: Obsolete
802.11n(Wi-Fi 4) gives out maximum 150 Mbps, and modern802.11ax(Wi-Fi 6) - up to 9.6 Gbps (but only under ideal conditions). - 📱 Device power: An old smartphone with a single-antenna Wi-Fi module won’t even handle 100 Mbps, while a flagship one iPhone 15 or Samsung Galaxy S23 they will be able to.
💡 How can I tell if my provider is at fault? Connect your computer to the router via cable and run a speed test. If the speed is close to your plan's speed over a wired connection, but not over Wi-Fi, the problem lies with your wireless network settings or hardware.
2. Online speed testing services: which one to choose?
The easiest way is to use web services like Speedtest or Yandex InternetometerBut not all of them tell the truth. Here are the key differences:
| Service | Accuracy | Pros | Cons |
|---|---|---|---|
| Speedtest.net (Ookla) | ⭐⭐⭐⭐ | Many servers, detailed statistics (ping, jitter) | May reduce speed due to ads, requires Flash on PC |
| Yandex Internetometer | ⭐⭐⭐⭐ | Simple interface, works without registration | Few servers in small towns |
| Fast.com (Netflix) | ⭐⭐⭐ | Quick test (5 seconds), optimized for streaming | Shows only download speed, no details. |
| nPerf | ⭐⭐⭐⭐⭐ | Tests speed, ping, and video/voice quality | Less known, sometimes takes a long time to load |
⚠️ Attention: Before the test, close all programs that may use the Internet (torrents, cloud storage, online games). Even Zoom or Skype in the background can reduce results by 20-40%.
🔹 How to conduct the test correctly?
- Connect to Wi-Fi from a distance 1–2 meters from the router (without obstacles).
- Run the test 3 times in a row and take average value.
- Check the speed on different devices (phone, laptop, TV).
Why are the results different on my phone and computer?
On smartphones, speeds are often reduced due to power saving (Wi-Fi running at half power) or background OS updates. On PCs, network card drivers and antivirus software can impact speeds. A 10-30% difference is normal.
3. How to check Wi-Fi speed on your phone (Android and iPhone)
On mobile devices, speed can be measured both through the browser and using dedicated apps. The latter method is more accurate, as browser tests depend on website optimization.
📌 For Android:
- 📱 Speedtest by Ookla — a classic application with test history and coverage map.
- 📊 Internet Speed Meter Lite - shows the speed in real time in the notification bar.
- 🔍 WiFi Analyzer — not only tests the speed, but also shows the channel load.
📌 For iPhone:
- 🍎 Speedtest (same version as on Android).
- 📈 Meteor - tests speed based on specific applications (Netflix, Instagram).
- 🔗 Network Analyzer — a professional tool with DNS and ping diagnostics.
⚠️ Attention: On iPhone some applications (eg WiFi Analyzer) do not show the actual connection speed due to restrictions iOSThey can only display data from the router, not the actual throughput.
Disable mobile internet (4G/5G)|Close all background apps|Put your phone on charge (saving battery reduces Wi-Fi performance)|Select a server in your city-->
4. Checking the speed on a computer (Windows, macOS, Linux)
On a PC or laptop, you can measure the speed not only through the browser, but also using console commands or third-party utilities. This is useful if you need to check connection stability (for example, for online games or video editing).
🖥️ Method 1: Via the command line (Windows)
- Click
Win + R, entercmdand pressEnter. - Enter the command to check the download speed:
bitsadmin /transfer myDownloadJob /download /priority normal "http://speedtest.tele2.net/100MB.zip" "C:\100MB.zip"(the file will be deleted after the test)
- To check the upload, use:
bitsadmin /transfer myUploadJob /upload /priority normal "C:\100MB.zip" "http://speedtest.tele2.net/upload.php"
🐧 Method 2: Via Terminal (macOS/Linux)
Install the utility speedtest-cli:
brew install speedtest-cli # for macOS
sudo apt install speedtest-cli # for Ubuntu/Debian
Then run the test:
speedtest-cli --simple
📊 Method 3: Deep diagnostic programs
- 🖥️ NetWorx — monitors traffic in real time and creates graphs.
- 📈 GlassWire — shows which programs are consuming internet.
- 🔧 Wireshark — for advanced users (packet analysis).
5. How to check Wi-Fi speed through router settings
If you don't have access to third-party services (for example, on a corporate network), you can check the speed directly in router web interfaceThis won't replace a full test, but it will show current channel load and the maximum theoretical speed.
🔹 Instructions for popular models:
- Open your browser and enter the router's IP address (usually
192.168.0.1or192.168.1.1). - Enter your login and password (by default it is often
admin/admin). - Go to the section
Wireless network(Wireless) orState(Status). - Find the lines
Speed,Link SpeedorTX/RX Rate— this is the current connection speed of the device to the router.
📌 Examples for different brands:
- 🔴 TP-Link:
Advanced → Wireless Statistics - 🔵 ASUS:
Network Map → Clients(point at device) - ⚫ Keenetic:
System → Monitor → Wireless Network - 🟢 Xiaomi:
Status → Devices(the speed is displayed next to the gadget name)
⚠️ Attention: The speed in the router settings is shown connection between the device and the router, and not the actual internet speed. If here 300 Mbps, A Speedtest shows 50 Mbps, the problem is on the provider's side or in the QOS settings.
6. Checking the speed on Smart TVs and set-top boxes (Android TV, LG WebOS, Samsung Tizen)
TVs and set-top boxes often become the weak link in a network due to outdated Wi-Fi modules or firmware limitations. Here's how to check the speed on popular platforms:
📺 Android TV (Xiaomi, Sony, Philips, NVIDIA Shield):
- Install Speedtest by Ookla from Google Play.
- Or use a browser (eg. Puffin TV) and go to
speedtest.net.
🍎 LG WebOS:
- Open LG Content Store and install Speedtest.
- Or use the built-in browser (it may slow down).
⚙️ Samsung Tizen:
- Install Speedtest from Samsung Apps.
- If the app is not available, connect your laptop to the same Wi-Fi and check the speed on it.
🎮 Set-top boxes (Apple TV, Amazon Fire Stick, MAG):
- On Apple TV No built-in tools - connect your laptop to the same router.
- On Fire Stick install Analiti from Amazon Appstore.
- On MAG boxes You can see the speed in the menu
Settings → Network Status.
⚠️ Attention: Many Smart TV use Wi-Fi modules that support only802.11n(up to 150 Mbps), even if the router supportsWi-Fi 6If the speed on your TV is low, try connecting it via cable or Powerline adapter.
7. What should I do if the speed is lower than stated?
You checked the speed and saw that instead 100 Mbps you receive 20 MbpsDon't rush to call your provider. First, follow these steps:
🔧 Step 1: Reboot your router and device
Unplug the router from the power outlet. 30 seconds, then turn it back on. This will clear the cache and reconnect you to the nearest ISP tower. On your device (phone/PC), turn Wi-Fi off and on again.
📡 Step 2: Change the Wi-Fi channel
If your router is set to auto-channel selection, it may select a busy channel. Go to your router settings (192.168.0.1) and manually set the channel:
- For 2.4 GHz: try the channels
1,6or11(they do not intersect). - For 5 GHz: select channels
36–48or149–165(less busy).
🔌 Step 3: Update your router firmware
Outdated firmware may be limiting speed. Update it through the router's web interface in the section System → Software Update. Before updating, save the settings to a file (see the "Backup" section) to avoid having to reconfigure the router.
📱 Step 4: Check QOS (Quality of Service) settings
If it is enabled in the router QoS, it can artificially limit the speed for some devices. Disable it in the section Additional settings → QoS or set priorities manually.
📞 Step 5: Call your provider
If nothing helps, contact technical support. Tell them that you:
- We checked the speed via cable and Wi-Fi.
- We rebooted the router and changed channels.
- The firmware has been updated.
Ask them to check line signal level And port loadingOften the problem lies in a faulty cable at the entrance or overloaded provider equipment.
FAQ: Frequently asked questions about Wi-Fi speed testing
🔹 Why is the speed different on my phone and computer?
This is normal. Speed is affected by:
- 📱 Wi-Fi module power (in phones it is weaker than in PCs).
- 🔋 Power saving mode (on phones, Wi-Fi may work at half strength).
- 🔄 Background processes (updates may be downloaded to your PC).
For an accurate comparison, check the speed on on the same server (for example, Moscow, Beeline).
🔹 Is it possible to increase Wi-Fi speed without replacing the router?
Yes, try:
- 🔄 Switch from 2.4 GHz on 5 GHz (if the router supports it).
- 📡 Install a router higher (on a cabinet or wall) and away from metal objects.
- 🔌 Disable
WMM(Wi-Fi Multimedia) in the router settings if there are stability issues.
🔹 Why does Speedtest show 100 Mbps, but files are downloading at 10 Mbps?
Speed in Speedtest measured in megabits (Mbit/s), and the download programs show megabytes (MB/s)To translate:
1 MB/s = 8 Mbps
That is 100 Mbps in the test - this is 12.5 MB/s When downloading. If the download speed is 20-30% lower, this is normal (protocol overhead).
🔹 How do I test my speed if all test sites are blocked?
Use alternative methods:
- 📥 Download a large file from a known server (for example, an image Ubuntu With
ubuntu.com) and note the time. - 🖥️ In Windows open
Task Manager → Network Connectionsand see the current download. - 📡 Check the speed in the router settings (section
StatusorWireless).
🔹 Does a VPN affect Wi-Fi speed?
Yes, but not always critical. A VPN can:
- ⬇️ Reduce speed by 10–50% due to traffic encryption.
- ⬆️ Increase speed if your ISP is artificially slowing down some websites (for example, torrents).
- 🔄 Add a delay (ping) due to remote server.
To test, disable the VPN and compare the results.