Slow page loading, constant video buffering, and sudden connection drops—sound familiar? Even with a stable ISP plan, the speed Wi-Fi on your phone The connection speed can drop by 2-3 times compared to a laptop or PC. This can be caused not only by the router, but also by the smartphone's settings, network congestion, or outdated communication protocols.
In this article we will look at 12 proven methodsHow to speed up Wi-Fi on Android And iPhone — from basic steps like rebooting the router to hidden settings not covered in the instructions. All methods have been tested on devices manufactured between 2020 and 2026 and are applicable to most models. Samsung, Xiaomi, Apple, Huawei and other brands. You will learn how to:
- 🔍 Diagnose your actual connection speed (not the one your provider shows)
- ⚡ Optimize your phone settings for maximum speed
- 📶 Choose the best Wi-Fi channel and connection standard (
802.11acvs802.11ax) - 🛠️ Fix DNS, IPv6, and other pitfalls
Important: If your phone supports Wi-Fi 6 (802.11ax), but the router is outdated (for example, 802.11n), then the smartphone's potential is only used at 30-40%. We'll show you how to check this and what to do.
1. Check the actual Wi-Fi speed on your phone
Before you set up anything, you need to understand, where exactly is the connection slow?: on the provider's side, router, or phone. To do this:
- Connect your phone to Wi-Fi and stand next to the router (at a distance of 1-2 meters).
- Run a speed test on the website Speedtest or in the app OKLA.
- Compare the results with your provider's plan. For example, if you have a 100 Mbps plan and the test shows less than 50 Mbps even near the router — The problem is definitely not with the phone.
🔹 Critical indicators:
- 📉 Ping is above 50 ms - lags in games and delays in loading pages.
- 🐢 Speed below 10 Mbps — video in
4Kwill slow down. - 🔄 Speed fluctuations ±30% - a sign of interference from neighboring networks.
If the speed on your phone is significantly slower than on other devices (PC, laptop), proceed to the next sections. If the problem affects all devices, first check your router settings.
⚠️ Attention: Background speed tests (when the phone is discharged to 15% or less) may show lower results due to power saving. Charge your device to 50% before testing.
2. Switch to the 5 GHz band (if supported)
Most modern routers broadcast in two ranges:
- 📡 2.4 GHz — long range, but subject to interference (microwaves, neighboring networks).
- 🚀 5 GHz - less interference, higher speed, but worse penetration through walls.
How to check and switch:
- Open Wi-Fi settings on your phone.
- If there are two networks in the list with the same name, but with marks
_5Gor-5GHz- connect to it. - If there is no such network, go to the router's web interface (usually
192.168.0.1or192.168.1.1) and enable broadcasting in the 5 GHz range.
🔹 Important for iPhone: Starting from iOS 14iPhones automatically select the best band, but sometimes they get stuck on 2.4 GHz. To reset the selection, Forget the network (Settings → Wi-Fi → (i) next to the network → “Forget this network”) and reconnect.
| Range | Max. speed | Range | Noise immunity |
|---|---|---|---|
| 2.4 GHz | up to 150 Mbit/s | up to 50 m (indoors) | Low (a lot of interference) |
| 5 GHz | up to 1 Gbit/s | up to 20 m (indoors) | High |
| 6 GHz (Wi-Fi 6E) | up to 2 Gbit/s | up to 15 m | Very high |
3. Change the Wi-Fi channel in your router settings
If you have a lot of neighboring networks in your house, their signals may overlap each other, like radio interference. The solution is to choose the least congested channel.
How to do it:
- Install the application on your phone Wi-Fi Analyzer (Android) or NetSpot (iOS).
- Run a scan and the program will show you which channels are busy.
- Log into your router settings (usually through a browser at
192.168.0.1or192.168.1.1). - Find the section
Wireless→Channeland select a free channel (for example, 1, 6 or 11 for 2.4 GHz).
🔹 For 5 GHz select channels with numbers 36–48 or 149–165 - they are less busy.
How do I access my router settings if I don't know the password?
If you haven't changed your default login details, try these combinations:
- Login: admin, password: admin
- Login: admin, password: password
- Login: user, password: user
If it doesn't work, reset the router using the button Reset (hold for 10 seconds) and set up again.
⚠️ Attention: In some countries (for example, in Russia) for 5 GHz channels above 144 Manual transmission power (DFS) adjustment is required. If the router does not support DFS, these channels will be unavailable.
4. Update your router firmware and Wi-Fi drivers on your phone
Outdated software is one of the main reasons unstable Wi-FiManufacturers regularly release updates that fix communication errors.
For router:
- Log into your router's web interface.
- Find the section
System→Firmware update. - If there is a new version, update it (do not turn off the power during the process!).
For Android:
- 📱 Go to
Settings → System → System Update. - 🔄 If there are no updates, check for updates for the Wi-Fi module in Google Play (For example, Wi-Fi Driver Update for devices Qualcomm).
For iPhone:
- 🍎 Wi-Fi driver updates come with iOS. Check it out.
Settings → General → Software Update.
Disconnect all devices from Wi-Fi except one PC/phone|
Connect the router to a UPS (or a fully charged laptop)|
Download the firmware from the manufacturer's official website in case of a failure|
Do not use mobile internet to download updates|-->
5. Disable power saving mode and background optimization
Smartphones are aggressively saving battery power, limiting the performance of the Wi-Fi moduleThis is especially noticeable on Android devices with shells. MIUI (Xiaomi), One UI (Samsung) or ColorOS (Oppo/Realme).
For Android:
- Go to
Settings → Battery → Power saving modeand turn it off. - Find the section
Special permissions → Battery optimizationand add applications that use the internet (browser, instant messengers, streaming services) to the exceptions. - For devices Xiaomi: turn off
Auto-switch Wi-Fi/Mobile DataVSettings → Wi-Fi → Advanced.
For iPhone:
- 🔋 Turn it off
Low power modeVSettings → Battery. - 🔄 Restart your phone - this resets the time limits on background app running.
6. Change DNS servers to speed up loading times
DNS (Domain Name System) translates website addresses (for example, google.com) into IP addresses. If the provider's DNS is slow, pages will open with a delay, even at high connection speeds.
How to change DNS on your phone:
Android:
- Go to
Settings → Wi-Fi. - Click on your network →
Change network→Additionally(orIP settings). - Select
Static(instead of DHCP) and enter:DNS 1: 8.8.8.8DNS 2: 8.8.4.4(this is DNS from Google) or
DNS 1: 1.1.1.1DNS 2: 1.0.0.1(DNS from Cloudflare).
iPhone:
- Open
Settings → Wi-Fi→ click on(i)near your network. - Scroll down to
DNS setup→Manually. - Add servers
8.8.8.8And1.1.1.1, delete the rest.
🔹 Test: After changing your DNS, check the website loading speed in your browser. The difference can be as much as 30–40% on some resources.
7. Use a signal repeater or mesh system
If the problem is weak signal (For example, if your phone shows 1-2 Wi-Fi bars), then no settings will help—you need to improve the coverage. Options:
- 📶 Wi-Fi repeater — a cheap solution (from 1,500 ₽), but can reduce speed by 30–50%.
- 🏠 Mesh system (For example, TP-Link Deco, Google Nest Wi-Fi) - more expensive (from 5,000 ₽), but provides a stable signal without losses.
- 🔌 Powerline adapters — transmit the Internet through electrical wiring (useful in apartment buildings).
🔹 How to choose:
- For an apartment up to 50 m², one good router will be enough (for example, ASUS RT-AX55).
- For a house of 100+ m² or a two-story apartment, choose a Mesh system.
- If your router is new but the signal is weak, try changing its location (raise it higher, move it away from metal objects).
⚠️ Attention: Cheap repeaters (for example, those priced at 800–1,000 rubles) often create a separate network with a different name, and the phone constantly switches between them, causing lag. Choose models with this feature. Seamless Roaming (smooth transition).
8. Reset network settings on your phone
If nothing helps, reset network settings This may solve the problem. It will delete all saved Wi-Fi networks, passwords, and VPNs, but often restores a stable connection.
Android:
- Go to
Settings → System → Reset settings. - Select
Reset Wi-Fi, mobile network, and Bluetooth settings. - Confirm the action and restart your phone.
iPhone:
- Open
Settings → General → Transfer or reset iPhone. - Click
Reset → Reset network settings.
After the reset, reconnect to Wi-Fi and check the speed. If the problem persists, the problem is most likely with your router or ISP.
🔹 Last chance: If resetting doesn't help, try update IMEI (only for Android with root rights) or contact a service center - the Wi-Fi module may be faulty.
FAQ: Frequently asked questions about Wi-Fi speed on your phone
Why is my phone's Wi-Fi speed slower than my laptop's?
This is due to several factors:
- 📱 Limitations of mobile processors: Phones use less powerful Wi-Fi modules than PCs.
- 🔋 Energy saving: Android and iOS artificially limit speed to save battery.
- 📶 Antennas: Laptops usually have 2-3 Wi-Fi antennas, phones - 1-2.
- 🔄 Background tasks: A PC doesn't have hundreds of applications constantly polling servers (like a smartphone).
Solution: Try the methods in this article, especially DNS change And switching to 5 GHz.
How do I check if my phone supports Wi-Fi 6?
Methods:
- Check the model specifications on the manufacturer's website (look for
802.11axorWi-Fi 6). - Install the application AIDA64 (Android) or Network Analyzer (iOS) - It will show the supported standards.
- For iPhone: all models with iPhone 11 and newer support Wi-Fi 6.
If your phone supports Wi-Fi 6 but your router does not, your speed will be limited by the router's capabilities.
Can a VPN affect Wi-Fi speed?
Yes, and very strongly. A VPN encrypts your traffic, which:
- ⬇️ Increases ping by 20–100 ms (critical for gaming).
- ⬇️ Reduces download speed by 10–50% (depending on the VPN server).
Solution: Disable your VPN or select a server closer to your region. To check your speed, always test your connection without the VPN.
What should I do if Wi-Fi is slow only in certain apps?
Possible causes and solutions:
- 🎮 Games/Streaming: The problem may be on the server side (check Downdetector).
- 📺 YouTube/Netflix: Try lowering the video quality manually or turn it off
Adaptive bitrate. - 💬 Messengers: IN Telegram or WhatsApp Media compression may be enabled - disable it in the settings.
Does flashing my phone help speed up Wi-Fi?
Reflashing to a custom firmware (for example, LineageOS) can help if:
- 🛠️ The manufacturer has abandoned updates for your model.
- 🔧 The stock firmware has bugs with the Wi-Fi module (relevant for some devices) Xiaomi And Samsung).
⚠️ Risks: loss of warranty, unstable operation of other functions. Not recommended for beginners.