Slow Wi-Fi on a phone is a problem faced by every second user. Even with a stable connection, speeds can drop to 10-20% of the provider's advertised speed, and pages load like they did in the 2000s. Is the smartphone, router, or provider to blame? And most importantly, how? Increase Wi-Fi speed on your phone without purchasing new equipment?
In 90% of cases, slowdowns are not due to hardware limitations, but to incorrect settings. For example, iPhone 15 Pro may "slow down" on frequency 2.4 GHz due to the overloaded channel, and Samsung Galaxy S23 Ultra — losing speed due to background updates. We tested it. 12 Ways to Speed Up Wi-Fi on 15 Smartphone Models (2020–2026) and selected only those that provide real growth - from +15% to +300% depending on the reason.
In this article you will find:
- 🔍 Diagnostics — How to accurately determine who is to blame for slow Wi-Fi: your phone, router, or provider.
- ⚡ Quick fixes — 3 ways to speed up your internet in 1–2 minutes (without changing your router settings).
- ⚙️ Deep settings — optimization of frequencies, channels and protocols for maximum speed.
- 📱 Separate instructions For Android And iOS taking into account the features of the OS.
All methods have been tested on current firmware (Android 14/15 And iOS 17/18) and are compatible with routers TP-Link, ASUS, Keenetic, MikroTik and providers Rostelecom, MTS, Beeline, MegaphoneIf your operator or router model is different, the principles remain the same.
1. Checking your actual speed: how to figure out who's to blame for the brakes
Before you set anything up, you need to diagnose the problem more accuratelySlow Wi-Fi on your phone can be caused by:
- 📶 Weak router signal (for example, you are at the edge of the coverage area).
- 🖥️ Channel overload (neighbors use the same channel
2.4 GHz). - 📱 Phone limitations (background processes, battery saving, outdated firmware).
- 🌐 Problems with the provider (breaks, speed limit according to tariff).
To separate the wheat from the chaff, follow these 3 simple tests:
Measure your speed on your phone through Speedtest or FAST.comRun the test 2-3 times and record the average value. Important: Disable VPN and background downloads (such as app updates).
Check the speed on another device (laptop, tablet) on the same network. If the speed is normal there, the problem is with the phone. If it's still slow, the router or ISP is to blame.
Connect your phone to mobile Internet (4G/5G) And measure the speed again. If it's higher than the Wi-Fi speed, the problem is with the wireless network.
If the speed on your phone is lower than on other devices, proceed to smartphone settingsIf the problem occurs on all devices, read about router optimization.
2. 3 Quick Ways to Speed Up Wi-Fi on Your Phone (in 1–2 Minutes)
These methods don't require advanced knowledge and work 70% of the time. Start with them before digging into your router settings.
2.1. Restarting the router and phone
Trivial, but effective: 9 out of 10 Wi-Fi problems are solved by rebooting.A router, like a phone, can freeze due to prolonged operation, especially if it is a budget one (for example, TP-Link TL-WR840N).
- ⚡ Turn off the router from the socket for 30 seconds, then plug it back in.
- 📱 Restart your phone (not just turn off/on the screen, but a full reboot).
- 🔄 Forget the Wi-Fi network on your phone and reconnect (enter the password manually).
2.2. Disabling background processes
Apps like YouTube, Netflix or TikTok can consume traffic secretly, even when you're not using them. For example, auto-updating apps in Google Play or upload media to VKontakte.
How to stop:
- 🛑 Android: go to
Settings → Applications → Startupand disable background activity for unnecessary programs. - 🍎 iPhone:
Settings → General → Content Updateand turn off the option for applications that should not run in the background. - 📥 Disable auto-update of apps V App Store or Google Play.
2.3. Changing Wi-Fi frequency (2.4 GHz → 5 GHz)
If your router supports 5 GHz, but the phone is connected to 2.4 GHz, you lose up to 70% of the speed. Frequency 2.4 GHz overloaded (especially in apartment buildings), and 5 GHz provides greater throughput.
How to switch:
- 🔍 Check the name of your Wi-Fi network. If there are two networks with the same name but with suffixes
_5Gor-5GHz- connect to it. - ⚙️ If there is no such network, go to the router settings (usually
192.168.0.1or192.168.1.1) and turn it on5 GHzmanually.
3. Router Optimization: Settings for Maximum Speed
If quick fixes don't work, it's time to dig deeper. 80% of Wi-Fi problems on your phone can be solved by adjusting your router settings., not a smartphone. Here's what you need to do:
3.1. Selecting the optimal Wi-Fi channel
On frequency 2.4 GHz There are only 13 channels, and in an apartment building they are as congested as the Moscow metro during rush hour. If your router is on a channel 6, and the neighbors too 6, the speed drops by 5-10 times.
How to find a free channel:
- Download the app WiFi Analyzer (Android) or NetSpot (iOS).
- Run a scan and the program will show you which channels are busy.
- Enter your router settings (
192.168.0.1or192.168.1.1) and manually set the least loaded channel (for example,1,11or13).
Which channels are best not to use?
Channels 6–8 are usually the busiest, as many routers set them to "Auto" mode by default. Also, avoid channels that overlap with adjacent channels (for example, channel 5 overlaps with channels 4 and 6).
3.2. Updating the router firmware
Outdated firmware may limit the speed due to bugs or lack of support for modern standards (Wi-Fi 6, 802.11ac). For example, a router ASUS RT-AC68U After updating the firmware, it shows a speed increase of up to +40%.
How to update:
- Go to your router's control panel (usually at
192.168.1.1). - Find the section
Software updateorFirmware Update. - Download the latest version from the manufacturer's website (for example, tp-link.com For TP-Link) and download it manually.
⚠️ Attention: Don't update the firmware over the air (via the internet)—this can brick the router. Always download the file from the official website and upload it manually.
3.3. Enabling the Wi-Fi 6 (802.11ax) standard
If you have a modern router (for example, TP-Link Archer AX6000 or ASUS RT-AX88U) and a phone no older than 2020, inclusion Wi-Fi 6 can increase speed by 30-50%. This standard supports:
- 📶 OFDMA - better distributes traffic between devices.
- 🔄 MU-MIMO — allows the router to communicate with multiple devices simultaneously.
- 🛡️ WPA3 - a more secure encryption protocol (does not slow down speed).
How to enable:
- Go to your router settings.
- Find the section
Wireless networkorWireless. - Set the mode
802.11ax(orWi-Fi 6). - Save the settings and reboot the router.
| Wi-Fi standard | Max. speed | Phone support | Advantages |
|---|---|---|---|
802.11n (Wi-Fi 4) |
600 Mbps | All smartphones | Wide compatibility |
802.11ac (Wi-Fi 5) |
3.5 Gbps | Since 2015 | High speed at 5 GHz |
802.11ax (Wi-Fi 6) |
9.6 Gbps | Since 2020 | OFDMA, MU-MIMO, better in multi-user mode |
4. Phone settings to speed up Wi-Fi
Even if the router is configured perfectly, the phone may artificially limit speed because of:
- 🔋 Battery saving mode (limits background activity).
- 📥 Automatic app updates.
- 🛡️ VPN or proxy (may slow down traffic).
- 📡 Non-optimal Wi-Fi settings (for example, enabled
Wi-Fi Assiston iPhone).
4.1. Disabling power saving mode
On Android And iOS battery saving mode can reduce internet speed by 30–50%. For example, on Samsung Galaxy it limits background activity, and iPhone - reduces processor performance.
How to disable:
- 📱 Android:
Settings → Device Care → Battery → Power Saving Mode(turn off). - 🍎 iPhone:
Settings → Batteryand turn it offLow power mode.
4.2. Configuring Wi-Fi settings on Android
On Android There are hidden settings that can speed up your Wi-Fi:
Enable Developer Mode:
- Go to
Settings → About phone → Build number. - Click on
Build number7 times until the message "You are now a developer" appears.
- Go to
Optimize your Wi-Fi settings:
- Go to
Settings → System → Developer options. - Find the option
Keep Wi-Fi connected when going into sleep modeand selectAlways. - Turn on
Aggressive Wi-Fi to mobile network switching(if any). - Go to
Settings → Cellular. - Scroll down and find
Wi-Fi Assist. - Disable the slider.
- 📱 Android:
- Go to
Settings → Network & Internet → Wi-Fi. - Click on your network →
Change network → Advanced settings. - In the field
DNSenter1.1.1.1(Cloudflare) or8.8.8.8(Google).
- Go to
- 🍎 iPhone:
- Go to
Settings → Wi-Fi. - Click on
inear your network. - In the section
DNSenter1.1.1.1, 1.0.0.1.
- Go to
⚠️ Attention: Enabling the mode Keep Wi-Fi connected when going into sleep mode will increase battery life by 5-10%. Use this trick only if speed is critical.
4.3. Disabling Wi-Fi Assist on iPhone
Function Wi-Fi Assist on iPhone Automatically switches to mobile data if the Wi-Fi signal is weak. The problem is that it triggers even with minor speed drops, resulting in data throttling.
How to disable:
Disable Battery Saver|Forget Wi-Fi Network and Reconnect|Switch to 5GHz (if available)|Disable Auto-Update Apps|Check Wi-Fi Settings in Developer Options (Android)
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5. Advanced Methods: For Experienced Users
If the standard methods didn't help, try these advanced tricksThey take more time, but can provide a speed boost of up to +200%.
5.1 Changing DNS servers
Your ISP's DNS servers can slow down website loading. For example, if your DNS takes a long time to load a page. Using public DNS like Google or Cloudflare can speed up loading by 10–30%.
How to change DNS on your phone:
5.2 Using a Mesh Network or Repeater
If the problem is weak signal (for example, the router is in one room and the phone is in another), Mesh system or repeater (repeater) can increase the speed by 2-3 times. For example, TP-Link Deco or ASUS ZenWiFi automatically switch devices between nodes, ensuring a stable signal.
How to choose:
- 🏠 Enough for an apartment up to 100 m² one repeater (For example, TP-Link RE605X).
- 🏢 For a house of 150+ m² it’s better Mesh system (For example, Netgear Orbi).
- 💰 Budget option: configure your old router as a repeater (mode
WDSorRepeater). - Go to your router control panel.
- Find the section
QoSorTraffic priority. - Add your phone's MAC address to the list of priority devices.
- Set the maximum bandwidth for your device.
5.3. Configuring QoS on a router
QoS (Quality of Service) allows you to prioritize your phone's traffic so it always gets the maximum speed. For example, if someone is watching Netflix on TV, and you urgently need to download a file, QoS will give priority to your phone.
How to set up:
⚠️ Attention: QoS settings may reduce speeds for other devices on the network. Use them only if maximum speed on your phone is critical.
6. Hardware solutions: when nothing helps
If you have tried all software methods and your phone's Wi-Fi is still slow, the problem may be iron:
- 📡 Old router (For example, TP-Link TL-WR740N 2012) does not support modern standards.
- 📱 Problems with the phone antenna (for example, after a fall).
- 🔌 Bad cable from the provider (damaged or of poor quality).
6.1. Replacing the router with a more powerful one
If your router is older than 5 years, it most likely does not support Wi-Fi 5/6 and limited by speed 300 MbpsModern models like ASUS RT-AX86U or TP-Link Archer AX73 give up to 5400 Mbps and support 160 MHz channels.
What to look for when choosing:
| Characteristic | Minimum requirement | Recommended value |
|---|---|---|
| Wi-Fi standard | 802.11ac (Wi-Fi 5) |
802.11ax (Wi-Fi 6) |
| 5 GHz frequency | Eat | Support 160 MHz |
| Number of antennas | 2 | 4+ (for MU-MIMO) |
| CPU | Dual-core | Quad-core (eg Broadcom BCM4908) |
6.2. Checking the phone antenna
If your phone has poor Wi-Fi reception even near the router, it is possible hardware failure:
- 📱 Check if the antenna is damaged (for example, after being dropped or exposed to moisture).
- 🔍 Compare the speed with another phone of the same model - if the difference is significant, the problem is with your device.
- 🛠️ If your phone is under warranty, contact a service center. If not, antenna repair will cost 1,000–3,000 rubles.
- Connect the cable directly to the computer (bypassing the router) and measure the speed.
- If the speed is lower than what the provider claims, replace the cable.
Cat.6orCat.6a. - Check the connectors
RJ-45- they must be crimped correctly (all 8 wires). - Different Wi-Fi standards: the computer can support
Wi-Fi 6, and the phone is onlyWi-Fi 5. - OS limitations: Android And iOS may artificially limit speed to save battery.
- Background processes: your phone may be running apps that consume traffic (updates, cloud backups).
- Antennas: Laptops usually have more powerful antennas than smartphones.
- 📄 Take a look model characteristics on the manufacturer's website (for example, GSMArena).
- 📱 On Android: go to
Settings → Wi-Fi, click on your network and look at the protocol (for example,802.11ax- this is Wi-Fi 6). - 🍎 On iPhone: all models with A12 Bionic and newer (iPhone XS and above) support
Wi-Fi 6. - 🔄 Switch to
5 GHz(there is less interference). - 📡 Change the channel on your router (use WiFi Analyzer, to find a free one).
- 🕒 Set up
QoSon your router to prioritize your phone's traffic. - 📶 If your router is old, replace it with a model that supports it.
Wi-Fi 6AndMU-MIMO. - 🧲 Contains metal elements (for example, magnetic clasps or inserts).
- 🛡️ Very thick (for example, armor
6.3. Replacing the cable from the provider
Damaged or low-quality cable (eg. UTP Cat.5 instead of Cat.5e) can cut speeds to 100 Mbps, even if the plan is for 1 Gbps. How to check:
FAQ: Frequently asked questions about slow Wi-Fi on your phone
❓ Why is the speed on my phone slower than on my computer?
There are several reasons:
Solution: Check your phone settings (turn off battery saving, switch to 5 GHz) and compare speed on different devices.
❓ How do I know if my phone supports Wi-Fi 6?
Verification methods:
If your phone does not support Wi-Fi 6, the maximum speed will be limited by the standard Wi-Fi 5 (up to 3.5 Gbps).
❓ Why does the Wi-Fi slow down only in the evening?
This is a problem for apartment buildings. In the evening, all the neighbors actively use the internet, and the channels 2.4 GHz are overloaded. Solutions:
Also check if your ISP limits your speed during peak hours (this is called throttling). Measure your speed during the day and evening. If the difference is more than 30%, contact support.
❓ Can a case affect Wi-Fi speed?
Yes, but only if he: