It's frustrating for any user when an Android smartphone successfully connects to a Wi-Fi network, but the internet isn't working. You see the Wi-Fi icon on the screen, but a warning triangle or the message "Connected, no internet access" appears next to it. This means the physical connection between your device and the router is established, but the onward route to the internet is blocked or incorrectly configured.
The problem may lie in a software failure of the operating system. Android, as well as incorrect router settings. Often the cause is IP address conflicts, outdated DNS servers, or ISP outages. In some cases, the system mistakenly identifies the network as unreliable due to power-saving features.
In this article, we'll examine all possible causes of this error in detail and provide step-by-step troubleshooting instructions. You'll learn how to diagnose the problem, change TCP/IP settings, and reset network parameters to factory defaults. It's important to proceed consistently, eliminating simple errors before attempting complex modifications to the router's firmware.
Diagnostics and initial connection checks
Before delving into the system's deep settings, it's important to ensure that the problem is truly rooted in the smartphone-router connection and not a global issue with the ISP. Users often reset their phones when their ISP is simply performing maintenance. Check if the internet is working on other devices connected to the same network, such as a laptop or tablet.
If other devices also fail to connect to the internet, the problem is most likely with your service provider or the router itself. In this case, reboot the router by unplugging it for 10-15 seconds. This clears the device's cache and reconnects to the provider's equipment. If the internet works fine on other devices but not on Android, the issue lies with the settings of your specific phone.
Check the date and time on your device. An incorrect system date can cause security certificate errors, causing browsers and apps to block connections. Also, check to see if Airplane Mode is enabled, as it may be stuck. Try turning it on and off again through the Quick Settings panel.
⚠️ Note: If you're using a corporate network or guest Wi-Fi at a hotel, the lack of access may be due to the need to log in via a web page (Captive Portal). Try opening any website to see if the system redirects you to a page requiring you to enter your password or accept the terms and conditions.
An important diagnostic step is to check the connection status in Android settings. Go to the network information section and see if the device has received an IP address. If the IP address field shows a value starting with 169.254.x.x, this means the device was unable to obtain a valid address from the router's DHCP server. In this situation, automatic address allocation failed, and manual intervention is required.
Reset and reconnect to Wi-Fi
The most effective and simple way to fix many software glitches is to "forget" the network. Operating system Android stores a connection profile that may contain outdated or conflicting data. Deleting this profile forces the phone to request all settings again, as if it were connecting for the first time.
To perform this procedure, go to the menu Settings → Wi-FiFind your network in the list, tap it, and select "Delete Network" or "Forget Network." Then, find the network again in the list of available networks, enter the password, and try connecting. This often immediately resolves the frozen connection issue.
If deleting the network doesn't help, try temporarily disabling the "Randomize MAC Address" feature. Modern versions of Android (starting with version 10) randomize MAC addresses when connecting to new networks to improve privacy. Some older routers or ISPs with strict MAC address locking may block this connection.
To change this setting, go to the "Advanced" or "Advanced Settings" section of the Wi-Fi network settings menu. In the "Privacy" or "MAC Address" section, switch the value from "Random MAC Address" to "Device MAC Address." This will return the physical address of the network card, which can be allowed in the router's security settings.
Setting up a static IP address manually
When automatic address assignment (DHCP) fails, manual IP address assignment is the best solution. This prevents conflicts when two devices on the network attempt to use the same address or when the router's address pool is full.
To switch to static IP mode, go to your Wi-Fi network settings and click "Change" or "Advanced." In the "IP Settings" field, select the option Static instead of DHCPYou will need to enter several numerical values that must correspond to your router's subnet.
Typically the parameters look like this: if the router address 192.168.0.1, then the phone needs to be assigned an address 192.168.0.150 (or any other free one in the range 2-254). Leave the subnet mask as default. 255.255.255.0The gateway and DNS 1 must match the router address. Google servers can be specified as an alternative DNS: 8.8.8.8.
Below is a table with example settings for various standard router addresses. Make sure you are using the correct subnet for your equipment.
| Parameter | For router 192.168.0.1 | For router 192.168.1.1 | For router 192.168.31.1 (Xiaomi) |
|---|---|---|---|
| Phone IP address | 192.168.0.125 | 192.168.1.125 | 192.168.31.125 |
| Gateway (Router) | 192.168.0.1 | 192.168.1.1 | 192.168.31.1 |
| Network mask | 255.255.255.0 | 255.255.255.0 | 255.255.255.0 |
| DNS 1 | 8.8.8.8 | 8.8.8.8 | 8.8.8.8 |
After entering the data, save the settings. The phone should reconnect. If the internet is restored, then the problem was with the router's DHCP server. You can leave the static address or try resetting the settings back to DHCP after rebooting the router.
Changing DNS servers to alternative ones
The "Wi-Fi is working, but there's no internet" problem is often caused by domain name issues. The provider's DNS servers may be slow or temporarily unavailable. Replacing them with public, fast servers from Google or Cloudflare often works wonders.
There are two ways to change your DNS. The first is through static IP settings, as described in the previous section. The second, more modern and convenient method is to use the "Private DNS" feature, available in Android 9 and later. This method encrypts DNS requests and bypasses ISP blocks.
To set up, go to Settings → Connections → Other connection settings → Private DNSSelect the "Private DNS Provider Hostname" mode and enter the address: dns.google or 1dot1dot1dot1.cloudflare-dns.comSave the changes and check your internet connection.
⚠️ Important: When using the "Private DNS" feature, enter only the hostname (domain name), not the IP address. Entering a numeric IP address in this field will result in a connection error.
If page loading speeds improve and apps work after changing the DNS, then the issue was with your ISP's request routing. This method also helps bypass some types of website blocking, as requests are routed through a secure channel.
Which DNS is better to choose?
Cloudflare's DNS (1.1.1.1) is considered the fastest and most stable, but Google's DNS (8.8.8.8) often handles geolocation services better. For most users in Russia and the CIS, automatic mode or Yandex's DNS (77.88.8.8) are the best choices, unless their ISP blocks them.
Reset network and system settings on Android
If software manipulations with specific networks don't help, perform a full network reset. This will return all Wi-Fi, Bluetooth, and mobile network settings to factory defaults. It's important to understand that this will delete all saved Wi-Fi passwords and Bluetooth device pairings.
You can perform a reset through the menu Settings → System → Reset settings → Reset Wi-Fi, mobile data, and Bluetooth settingsThe path may vary slightly depending on your smartphone model (Samsung, Xiaomi, Honor), but the essence remains the same. Confirm the action and wait for the communication modules to reboot.
After the reset, your phone will be as good as new in terms of connections. You'll have to re-enter your Wi-Fi network passwords. However, this often fixes deep system configuration errors that can't be fixed by simply toggling sliders.
As a last resort, if none of the above methods work, you may need to perform a full factory reset of your device (Factory Reset). Before doing this, be sure to back up important data, as all information from the internal memory will be deleted.
☑️ Checklist before resetting settings
Problems on the router and provider side
Don't rule out the possibility of external hardware. If the router is overheating, its processor may be unable to process data packets, causing connection drops. Check to see if the device is overheating and ensure adequate ventilation. Also, try updating the router's firmware via the web interface if the manufacturer has released a new version.
Sometimes the problem stems from an overflowing DHCP client list. If too many devices (smartphones, TVs, lamps, refrigerators) are connected to the network, the router may stop issuing new IP addresses. You can reduce the lease time or expand the address pool in the router settings.
It's also worth checking the MAC address filters in your router's security settings. It's possible your phone was accidentally blacklisted, and the router is technically allowing it to connect, but blocking data transfer. Check the section Wireless → Wireless MAC Filtering or similar in the interface of your device.
If all else fails, contact your provider's technical support. They may be undergoing maintenance, or your account may have been suspended due to non-payment. A specialist can also remotely check your signal strength and port errors.
Frequently Asked Questions (FAQ)
Why is Wi-Fi working, but the internet connection is slow only on one app?
Most likely, the problem is not with the network, but with the cache of the app itself or its permissions. Go to Settings → Applications, find the problematic app, and select "Clear Cache" and "Clear Data." Also, check if there's a background data restriction for this app in your Wi-Fi settings.
Can antivirus software block internet access on Android?
Yes, some aggressive firewall settings in third-party antivirus programs can block the connection. Try temporarily disabling or uninstalling your antivirus to see if network access is restored.
What should I do if my phone says "Obtaining IP address" and freezes?
This is a classic sign of a DHCP issue. Setting a static IP (see the section above) or rebooting the router may help. Also, try changing the MAC address to "Device MAC Address" in the advanced Wi-Fi settings.
Does date and time affect internet access?
Yes, it does have a critical impact. If the phone's date is incorrect (for example, if it's set to 2015), modern security protocols (SSL/TLS) won't be able to establish a secure connection with websites, and the browser will report a certificate error or a network outage.