Android WiFi keeps disconnecting is one of those problems that starts small and quickly becomes unbearable. You are in the middle of a video call, and the connection drops. You open YouTube, and it buffers endlessly. You check your WiFi, and it shows connected, but nothing works.
The problem is that Android does not always tell you why it keeps disconnecting. It just drops the connection and reconnects on its own, sometimes every few minutes.
This guide covers every proven fix, step by step, so you can stop the disconnections for good.

Why Does Android WiFi Keep Disconnecting?
Android WiFi disconnection problems are caused by several different things. Weak signal strength, router issues, incorrect WiFi settings, battery optimisation features, IP conflicts, and outdated software are the most common culprits.
Understanding the cause makes it much easier to apply the right fix without wasting time on solutions that will not work for your situation.
1. Move Closer to Your Router
Weak signal is the most common reason Android WiFi keeps disconnecting. When your phone is at the edge of the router's range, the connection becomes unstable and drops frequently.
What you should do:
- Move your phone closer to the router and test the connection.
- Check the WiFi signal bars in your status bar.
- Avoid walls, thick doors, and other obstructions between your phone and router.
If the disconnections stop when you are close to the router, the issue is signal strength. Consider repositioning your router or using a WiFi extender.
2. Restart Your Phone and Router
A quick restart of both your Android phone and your router clears temporary errors that cause unstable connections. This is always worth trying before anything else.
Steps to follow:
- Turn your Android phone off completely, wait 30 seconds, then turn it back on.
- Unplug your router from the power socket, wait 30 seconds, then plug it back in.
- Wait for the router to fully restart before trying to connect.
If other devices were also having connection issues, a router restart usually fixes everyone at once.
3. Disable WiFi Power Saving Mode
Android has a feature that reduces WiFi activity when the screen is off or when the battery is low. This is designed to save power, but it causes the phone to disconnect from WiFi unexpectedly.
How to disable it:
- Open Settings and go to WiFi.
- Tap the three-dot menu or Advanced WiFi settings.
- Look for WiFi Power Saving Mode or Keep WiFi on during sleep.
- Set it to Always or disable the power saving option.
On Samsung devices, go to Settings, then Connections, then WiFi, then Advanced, and disable Power Saving Mode from there.
4. Forget the Network and Reconnect
A corrupted saved network profile can cause repeated disconnections even when the signal is strong. Forgetting the network removes the old profile and lets your phone create a fresh connection.
How to do it:
- Open Settings and tap WiFi.
- Tap and hold your network name or tap the information icon next to it.
- Tap Forget Network and confirm.
- Tap your network name again, enter the password, and reconnect.
This fix works especially well when the disconnections start suddenly without any obvious trigger.
5. Set a Static IP Address
When your router assigns a new IP address to your phone too frequently, it can cause brief disconnections while the address changes. Setting a static IP prevents this from happening.
How to set a static IP on Android:
- Open Settings and tap WiFi.
- Tap the information icon next to your connected network.
- Tap IP Settings and change it from DHCP to Static.
- Enter an IP address such as 192.168.1.100 and fill in the gateway as 192.168.1.1
- Save the settings and reconnect.
If you are unsure which IP to use, check your router settings or ask your internet provider.
6. Change the WiFi Frequency Band
Most modern routers broadcast on both 2.4GHz and 5GHz. The 5GHz band is faster but has a shorter range and drops more easily through walls. If your phone is connected to 5GHz and you are not very close to the router, switching to 2.4GHz can fix the disconnections.
What you should do:
- Open Settings and tap WiFi.
- Look for two network names from your router, usually one ending in 5G.
- Connect to the 2.4GHz version instead.
- Test whether the connection stays stable.
The 2.4GHz band has better range and penetrates walls more effectively, making it more reliable for everyday use.
7. Check for IP Address Conflicts
If two devices on your network are assigned the same IP address, both will experience connection drops. This happens more often on busy home networks with many connected devices.
How to fix it:
- Open Settings and tap WiFi.
- Tap the information icon next to your network.
- Tap IP Settings and select DHCP.
- Disconnect and reconnect to let the router assign a fresh, unique IP.
Restarting the router also clears all IP assignments and gives every device a new address automatically.
8. Turn Off Battery Optimisation for WiFi
Android's battery optimisation can aggressively limit background activity, including WiFi connections. Some phones disconnect from WiFi entirely when the screen turns off to save battery.
How to fix this:
- Open Settings and go to Battery.
- Tap Battery Optimisation or App Optimisation.
- Find your WiFi or network-related system apps.
- Set them to Not Optimised or Unrestricted.
On some phones, this option is under Settings, then Apps, then Special App Access, then Battery Optimisation.
9. Update Android Software
WiFi bugs are common in Android updates, and manufacturers usually fix them in follow-up patches. If your phone started disconnecting after a recent update, a newer fix may already be available.
How to check:
- Open Settings and go to Software Update or System Update.
- Tap Check for Updates.
- Download and install any available update.
Keeping your Android software up to date is one of the most effective ways to prevent recurring WiFi issues.
10. Reset Network Settings
If nothing else has worked, resetting your network settings gives your phone a completely fresh start for all connections. This removes all saved WiFi networks, Bluetooth pairings, and VPN configurations.
How to reset network settings on Android:
- Open Settings and go to General Management or System.
- Tap Reset and select Reset Network Settings.
- Confirm the reset and wait for the phone to restart.
- Reconnect to your WiFi network by entering the password again.
This fix resolves most stubborn WiFi disconnection problems that survive all other solutions.
When Should You Visit a Repair Shop?
If WiFi keeps disconnecting even after trying all these fixes, there may be a hardware problem with the WiFi antenna inside your phone. Seek professional help if:
- The WiFi signal shows full bars, but still drops constantly.
- No networks appear at all, even when routers are nearby.
- The problem started after the phone was dropped or got wet.
- WiFi works fine on all other devices, but not your Android phone.
These signs point to a physical fault that a technician needs to inspect.
Final Thoughts
Android WiFi keeps disconnecting is almost always fixable without professional help. In most cases, the problem comes down to signal strength, power saving settings, or a simple network reset. Work through each fix in order, and you will find the solution before reaching the advanced steps.
You Might Also Like:
WiFi problems on Android are sometimes connected to overall battery behaviour. If your phone is also draining battery faster than usual, read our guide on How to Fix Android Battery Draining Fast.
Frequently Asked Questions (FAQs)
Why does my Android WiFi keep disconnecting and reconnecting?
The most common reasons are a weak signal, battery optimisation settings turning off WiFi, or an IP address conflict. Disabling WiFi power saving mode and moving closer to the router usually fixes this immediately.
Why does my Android disconnect from WiFi when the screen turns off?
This is caused by Android's battery saving feature that turns off WiFi when the screen is off. Go to WiFi Advanced Settings and set Keep WiFi on during sleep to Always to fix this.
Will resetting network settings delete my data?
No. Resetting network settings only removes saved WiFi passwords, Bluetooth pairings, and VPN configurations. Your photos, apps, contacts, and personal files are completely safe.
Why does my phone show WiFi connected but keep dropping internet?
This usually means the router has a problem, there is an IP conflict on the network, or the signal is too weak to maintain a stable connection. Restarting the router and forgetting and reconnecting to the network usually resolves this.
Can a phone case cause WiFi disconnection?
In rare cases, thick metal phone cases can interfere with the WiFi antenna and weaken the signal. Try removing the case and testing the connection to rule this out.
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