The situation when a smartphone suddenly stops detecting the home network or endlessly hangs on the “Obtaining IP address” status is familiar to every owner AndroidThis isn't just a minor inconvenience, but a serious disruption to your workflow, especially if you rely on instant messaging apps and cloud services. Often, the problem isn't a hardware failure, but a software glitch or settings conflict.
Before panicking and taking your device to a service center, it's worth trying a number of software recovery methods. Most errors, such as "Saved, protected" or "Unable to obtain IP address," can be resolved in a few minutes with the right steps. We'll cover a full range of solutions, from a simple reboot to a comprehensive DNS configuration.
It is important to understand that the algorithms work wireless module may differ in different versions of the operating system. However, the basic diagnostic principles remain the same for all devices, whether they are budget Xiaomi or flagship Samsung GalaxyLet's take a step-by-step look at how to restore a stable connection.
Primary diagnosis and basic actions
The first step is to eliminate basic failures that are often ignored by users. Sometimes operating system The device simply "forgets" to reconnect to the access point after waking from sleep mode or updating background services. Simply toggling the slider in the notification shade may not help, as the module remains active but frozen.
A much more effective solution is to perform a full reboot of the device. This action clears the RAM and forces a restart of all system services, including drivers. Wi-Fi adapterIf the problem persists after turning it on, it's worth checking whether the internet works on other devices on the same network. This will help determine whether the problem lies with the router or the phone itself.
It's also worth paying attention to the distance to the signal source. If you're in an area with poor reception, your phone may constantly lose connection, even if you've entered the password correctly. In such cases, moving closer to the router or using repeater to enhance the signal.
⚠️ Caution: If your phone gets hot at the bottom of the case (where the antenna module is usually located) even without active tasks, this may indicate a physical fault or a short circuit in the antenna power circuit.
Managing network profiles and forgotten networks
One of the most common causes of crashes is a conflict with saved profiles. Android may attempt to connect to a network with changed security settings or passwords using old ones. encryption keysThis results in an endless authorization loop, which is interrupted by an error. The solution is to completely delete the old profile.
To do this, go to your wireless network settings, find the problematic access point, and select "Forget Network" or "Delete." You'll then need to re-enter the password. Make sure your keyboard layout is correct and capitalization is respected, as Wi-Fi passwords are sensitive.case-sensitive.
Sometimes the network list accumulates a ton of old profiles, which the system periodically scans in the background, trying to find familiar locations. This can put additional strain on the module and cause interference. Regularly clearing the list of saved networks is a good practice for maintaining connection stability.
☑️ Checklist before deleting a network
If deleting the profile doesn't help, try changing the security type on your router (if you have access to its settings). Switching to sanitation mode WPA/WPA2 to clean WPA2-PSK often solves compatibility issues with old or, conversely, very new smartphones.
Manually configuring IP and DNS settings
When a device gets stuck at the "Obtaining IP Address" stage, it often means the router's DHCP server isn't responding or is taking too long to respond. In this case, manual registration static IP address can instantly solve the problem. You'll need to know the gateway address (usually the router's address) and the address range of your subnet.
Go to the advanced settings of your Wi-Fi network when connected. Find "IP Settings" and switch it from "DHCP" to "Static." In the IP address field, enter a value similar to the gateway address, but with a different last number (for example, if the gateway is 192.168.1.1, you could assign 192.168.1.55 to your phone). This will prevent address conflicts on your local network.
DNS settings deserve special attention. By default, Android uses addresses provided by your ISP, which can be slow or block websites. By manually entering 8.8.8.8 In the DNS 1 field, you can often fix the situation where Wi-Fi is working, but pages don't load or take a very long time to load. This is especially true for mobile operators providing home internet.
| Parameter | Value for home network (example) | Description |
|---|---|---|
| IP address | 192.168.1.128 | The unique address of a device on the network |
| Gateway (Router) | 192.168.1.1 | Access point address |
| Network mask | 255.255.255.0 | Determines the size of the local network |
| DNS 1 | 8.8.8.8 | Primary name server (Google) |
| DNS 2 | 1.1.1.1 | Backup server (Cloudflare) |
Reset network settings to factory defaults
If simple methods don't work, you'll need to perform a more thorough reset. The "Reset Network Settings" feature in Android resets all connection settings to factory defaults. This action is safe for your personal data: photos, contacts, and apps will remain intact, but all saved Wi-Fi passwords and pairings will remain. Bluetooth devices will be deleted.
You can find this option along the path Settings → System → Reset settings → Reset Wi-Fi, mobile network, and Bluetooth settingsThe path may vary slightly depending on the manufacturer's operating system (MIUI, OneUI, ColorOS), but the process remains the same. After the reset, the phone will reboot, and you'll need to re-enter your home internet password.
This method is effective when system configuration files have accumulated errors that cannot be fixed individually. It also helps if your phone no longer sees hidden networks or incorrectly identifies the security type after updating the router's firmware.
Flight mode and power saving
Aggressive power-saving algorithms are the bane of modern Android smartphones. The system can forcefully disable Wi-Fi module in the background or limit its power to save battery life. If you notice that your internet connection drops when your screen goes dark, this could be the problem.
Check the battery settings for specific apps that require constant network access (such as messaging apps or smart home devices). Set the mode to "Unlimited" or add the app to the exceptions list. It's also worth disabling the "Wi-Fi in sleep mode" option if it's enabled in the advanced wireless settings.
Another quick trick is to use Airplane Mode. Turn it on for 10-15 seconds, then turn it off. This forces a reboot of all the phone's radio modules, including cellular and NFC, which can sometimes help "shake up" a stuck communication protocol stack more effectively than a regular reboot.
⚠️ Note: On some phone models (especially Chinese brands), Ultra Power Saving mode may disable Wi-Fi completely. Check if this mode is enabled if all networks are lost.
Problems with the 2.4 GHz and 5 GHz bands
Modern routers often operate in two bands: 2.4 GHz and 5 GHz. Older devices or devices with cheap modules may not work correctly with the 5 GHz band, especially over long distances or through walls. If your phone sees the network but won't connect, try separating these networks in your router settings by giving them different names (SSIDs).
For example, instead of "HomeWiFi," create "HomeWiFi_2.4" and "HomeWiFi_5G." Connect your phone to the 2.4 GHz network. This range is slower, but has better penetration and compatibility. Problems with channel width (for example, setting 80 MHz instead of 20/40 MHz) can also cause instability on older chips.
If the phone is new and supports the standard Wi-Fi 6If your router is old, protocol conflicts may occur. In this case, try setting the router's wireless settings to mixed mode (b/g/n) to ensure maximum compatibility.
Frequently Asked Questions (FAQ)
Why is Wi-Fi slow even with a full signal strength?
Low speeds with a strong signal are often caused by channel congestion from neighboring routers or background updates on other devices. Outdated Wi-Fi module drivers or DNS settings may also be the cause. Try changing the channel on your router to a less congested one (1, 6, or 11 for 2.4 GHz).
My phone says "Saved, protected." What should I do?
This error means the password is entered correctly, but the encryption type doesn't match. Most likely, your router is set to WPA3, but your phone only supports WPA2, or vice versa. Try "Forget the network" and reconnecting, or change the router's security type to WPA2-PSK (AES).
Can a case affect Wi-Fi reception?
Yes, if the case contains metal elements, magnets, or a thick layer of material in the antenna area (usually the top or bottom of the case), it may shield the signal. Remove the case and check the connection.
How to update Wi-Fi drivers on Android?
Wi-Fi drivers on Android aren't updated separately. They're included with system updates. Check for OS updates in the menu. Settings → System → Software UpdateAlso, some manufacturers (Samsung, Xiaomi) have separate applications for updating system components.
Why does Wi-Fi turn off by itself after a while?
Most often, this is the "Turn off Wi-Fi when in sleep" power saving setting. It could also be caused by the automatic switch to mobile data when the Wi-Fi signal becomes weak. Disable "Switch to mobile data" in Wi-Fi settings.