Wi-Fi isn't working on my Android phone: What to do

When your smartphone suddenly loses internet connection, it can catch you off guard at the most inopportune moment. You're trying to send a message, open a map, or simply check the news, but the icon Wi-Fi The status stays "Connected, no internet access" or disappears completely. On devices running the operating system Android This problem is quite common and can be caused by either a software glitch or a conflict with the router settings.

Before taking your device to a service center or calling your provider, it's worth performing a few diagnostic steps yourself. In most cases, restoring your network's functionality takes just a few minutes if you know what parameters to check. Below, we'll walk you through the process, from the simplest steps to more complex ones. security protocols.

Ignoring minor glitches can lead to the phone losing visibility even to nearby networks, and the battery draining faster due to the module's constant attempts to find a signal. Therefore, it's important to carefully review the list of possible causes. Let's start with basic checks, which resolve the issue in 80% of cases.

Basic reboot and airplane mode check

The first and most obvious step is a simple device reboot. This clears the RAM and forcibly restarts all system services, including the wireless module drivers. It often happens that after a smartphone has been running for a long time, temporary errors accumulate that prevent proper data exchange with the router.

If a simple reboot doesn't help, try activating and deactivating airplane mode. This will force the radio to completely turn off and on again, initiating a new airborne scan. To do this, pull down the notification shade and look for the airplane icon, or go to the settings menu.

In some cases, it can help "forget" the problematic network. The system will delete the saved profile with all passwords and IP settings, which often resolves the issue if the router settings were previously changed.

• 📱 Perform a full reboot of your smartphone through the power menu.
• ✈️ Turn on airplane mode for 10-15 seconds, then turn it off.
• 🗑️ In Wi-Fi settings, select your network and tap "Delete" or "Forget."
• 🔌 Reboot the router itself by disconnecting it from the power supply for 30 seconds.

⚠️ Attention: If after rebooting the phone does not see any Wi-Fi networks at all, and the list is empty, the Wi-Fi module itself or the antenna cable inside the case may be damaged.

Checking date, time, and power saving settings

It would seem that time has nothing to do with the internet. However, security protocols WPA2 And WPA3 are critically dependent on time synchronization. If the date on your device is incorrect (for example, it shows 2015), the security certificates will be invalidated, and the router will simply disconnect.

It's also worth paying attention to the power saving mode. Aggressive battery-saving algorithms can limit background processes and even disable Wi-Fi when the screen goes dark. This often results in messages not arriving in messengers until the phone is unlocked.

Check if you have enabled Do Not Disturb mode or special profiles that may block network activity from certain apps. In modern operating systems MIUI, OneUI or ColorOS Optimization settings can be very deep.

• 🕒 Make sure that the "Auto-detect" box is checked in the "Date & Time" settings.
• 🔋 Disable power saving mode to check connection stability.
• ⚙️ Check the battery settings for the specific app that isn't working.

Resetting network settings and working with the IP address

If simple methods fail, a more in-depth investigation of your connection settings will be required. This is often caused by an IP address conflict: the router is trying to assign your phone an address that is already taken by another device on the local network. In this case, switching to a static IP address can help.

To do this, go to the advanced settings of your Wi-Fi network. Find the "IP Settings" item and change the value from DHCP on StaticYou will need to manually enter the address, usually 192.168.1.128 (the last numbers may vary, the main thing is to be outside the router's automatic distribution range).

A radical but effective method is a complete network settings reset. This will delete all saved Wi-Fi passwords, Bluetooth pairings, and mobile network settings, restoring the network stack to its factory defaults. This often "fixes" software glitches after Android updates.

⚠️ Attention: Before resetting your network settings, make sure you remember the passwords for important Wi-Fi networks, as they will be permanently deleted.

What is DHCP and why does it fail?

DHCP is a protocol that automatically assigns IP addresses to devices on the network. It fails when the router's lease table runs out of addresses or an entry error occurs, causing a new request from the phone to be ignored.

Problems with the 2.4 GHz and 5 GHz frequency ranges

Modern routers often operate in two ranges: 2.4 GHz And 5 GHzThe first has a longer range, but lower speed and is subject to significant noise from neighboring routers and microwaves. The second provides high speed, but is less able to penetrate walls and has a shorter range.

If your phone is older, it may simply not support the 5 GHz band. Conversely, if your router is configured to combine networks (Smart Connect) under a single name, your phone may be stuck on the distant 2.4 GHz band with a weak signal, ignoring the fast 5 GHz band nearby.

Try separating the networks in your router settings (via a browser on your computer) by giving them different names, for example, Home_WiFi And Home_WiFi_5GThen connect your phone to the network that matches its capabilities and your location.

Setting up DNS and using a secure connection

A common reason why the Wi-Fi icon is present but pages won't load is a problem with the provider's DNS servers. In this case, specifying alternative DNS addresses, such as those from Google or Cloudflare, can help. This will speed up website loading and may resolve the access issue.

Android 9 and newer have a feature called "Private DNS." It encrypts requests, but if you enter an incorrect host address, the internet will stop working completely. Make sure this field is set to either "Auto" or a valid address, such as dns.google.

To change the DNS in a specific Wi-Fi network, go to the IP settings (as described above, in static mode) and enter the addresses in the DNS 1 and DNS 2 fields 8.8.8.8 And 8.8.4.4 respectively.

Hidden causes and driver updates

Sometimes the problem isn't with the phone or the router, but with incompatible encryption standards. If the router is configured to only work in encrypted mode, WPA3, and the phone is old, it may not connect. Conversely, new phones may be capricious with older protocols. TKIP.

It's also worth checking if you have an internet speed booster or VPN app installed on your phone that's interfering with the system. Such programs often change network routes and leave behind configuration errors after being removed.

In rare cases, resetting all settings to factory defaults can help, but this is a last resort. Before doing so, try updating your phone's firmware or, conversely, rolling back system updates if the problem appeared immediately after an update.

⚠️ Attention: The settings menu interface may differ depending on the phone model (Samsung, Xiaomi, Pixel) and Android versions. Look for similar items.

Questions and Answers (FAQ)

Why does Wi-Fi work on other devices but not on my phone?

The problem is most likely with the individual network profile on your device. Try "Forget the network" and reconnect, or check if your router settings are set to MAC address filtering, which is blocking your phone specifically.

What does the message "Saved, protected" mean?

This is a common Android glitch, meaning the phone can't complete the handshake with the router due to an incorrect password or incompatible encryption type. Solution: delete the network and re-enter the password, making sure to check the correct keyboard layout.

Can a case interfere with a Wi-Fi signal?

Yes, if the case has a metal plate for magnetic mounting in the car or is made of thick metal. Metal shields the signal, significantly reducing connection quality.

How to check if the Wi-Fi module is burned out?

If the Wi-Fi slider in the settings is grayed out and won't turn on, or turns off immediately when turned on, and a factory reset doesn't help, there's a high probability that the module's hardware is faulty.