A sudden message Net Err Name Not Resolved on the screen of your smartphone can turn a useful device into a useless brick. This error indicates that the browser cannot convert the site's domain name into a network-readable IP address. In fact, your phone “sees” that there is Internet, but does not know where exactly to knock to open the page.
The situation is especially annoying because of its unpredictability: just a minute ago you were watching a video, and now you see a gray screen with a technical failure code. In most cases, the problem lies in the incorrect operation of DNS servers or a temporary failure of network settings, and not in a physical breakdown of the communication module.
This article offers a step-by-step algorithm of actions that will help restore access to the World Wide Web without a visit to the service center. We will analyze both simple reboot methods and deeper system settings Android.
The nature of the error and primary diagnosis
Before delving into the depths of the settings, you need to understand what exactly causes the conflict. The error Net Err Name Not Resolved most often occurs when the DNS (Domain Name System) service fails. It's a kind of Internet phone book that matches human-readable addresses like google.com with the numeric IP addresses of servers.
Sometimes the problem is local in nature and affects only one specific browser installed on your device. In other cases, the failure affects the entire system, making it impossible for any applications that require a network connection to work.
First of all, check whether the Internet works in other apps, for example, in YouTube or instant messengers. If they function normally, then the problem is isolated to the browser. If the network is not available everywhere, you will need a comprehensive diagnosis of the connection settings.
Try opening the same site via mobile data and via Wi-Fi. If the error appears in only one of the networks, the problem lies in the router or operator's tariff, and not in the smartphone itself.
⚠️ Attention: If the error appears only when connecting to public Wi-Fi networks (cafes, airports), the provider's authorization portal may have blocked access due to incorrect security settings of your device.
Basic methods restoring the connection
The simplest and most often ignored way to solve the problem is to completely reboot the device. Many users simply turn off the screen, thinking that this is enough, but resetting the network stacks requires a complete power cycle.
Switching airplane modes is also an effective method. This action forcibly terminates all current communication sessions with cellular operator towers and Wi-Fi access points, forcing the phone to re-query the IP address and DNS settings.
- 📱 Turn on Airplane mode for 10-15 seconds, then turn it off.
- 🔄 Completely reboot your smartphone through the menu power supply.
- 📶 If you are using Wi-Fi, disconnect from the network and reconnect by entering the password.
These manipulations allow you to clear temporary network errors that may have accumulated in the RAM of the communication module. In 60% of cases, it is this simple approach that returns the browser to functionality without the need for complex settings.
☑️ Quick network diagnostics
Clearing cache and browser data
If the problem is localized Your particular browser likely has corrupted data or outdated DNS records in its memory. The browser cache stores copies of pages to speed up loading, but if it fails, it can store erroneous responses from servers.
To troubleshoot the problem, you need to go to the system settings and find the application management section. There you should select your main browser, be it Chrome, Samsung Internet or Firefox, and go to memory management.
It is important to distinguish between clearing the cache and clearing data. The first deletes temporary files, the second resets all browser settings, including saved passwords and history. Start with a less radical method.
Follow these steps: go to Settings → Applications → [Your browser] → Storage. Click the button Clear cache. Check your internet connection. If the error persists, repeat the path and click Settings → Applications → [Your browser] → Storage Net Err Name Not Resolved saved, repeat the path and click Clear data data-i="68">⚠️ Attention: Clearing browser data will delete all browsing history and saved passwords. Make sure you remember the login information for important accounts before performing this step..
⚠️ Attention: Clearing browser data will delete all browsing history and saved passwords. Make sure you remember the login information for important accounts before performing this step.
After resetting the data, the browser will return to the same state as after installation. This is guaranteed to remove any software conflicts within the application itself that could be blocking domain name resolution.
Why does the cache cause errors?
The DNS cache in the browser can store outdated IP addresses of sites. If site administrators have moved a resource to a new server, and your phone tries to contact the old address, a name resolution error occurs. Clearing the cache forces the browser to request the current address again.
Manually setting up DNS servers
Often, providers provide DNS servers by default that are unstable or subject to filtering. Replacing them with public and reliable servers from large technology companies can instantly solve the problem.
In modern versions Android (starting from version 9) there is a convenient “Private DNS” function that encrypts requests and speeds up their processing. This is the preferred method over the old DNS setting in Wi-Fi settings.
To activate, go to Settings → Connections → Other connection settings → Private DNS. Select the "Private DNS Provider Hostname" mode and enter the address of one of the trusted services.
| DNS Provider | Host address to enter | Features |
|---|---|---|
| Google Public DNS | dns.google |
High speed, stability |
| Cloudflare | 1dot1dot1dot1.cloudflare-dns.com |
Emphasis on privacy and security |
| AdGuard DNS | dns.adguard.com |
Blocks ads and trackers |
After entering the address, save the settings. The phone may lose connection for a second and then restore it with new settings. Check if the error disappears Net Err Name Not Resolved when trying to load pages.
Using the "Private DNS" function is the most effective software solution to the problem, since it works at the level of the entire operating system, and not just one application.
Resetting the device's network settings
If the previous methods did not help, there may be problems with the system deep configuration conflicts have accumulated. Resetting network settings will return all connection settings to the factory state, deleting saved Wi-Fi networks, Bluetooth pairs and mobile settings.
This procedure is safe for your personal data: photos, contacts and applications will remain in place. Only Wi-Fi logins and passwords are deleted, as well as pairings with wireless headsets and watches.
Find the section in the phone menu Settings → General management → Reset → Reset network settings. Confirm the action by entering your PIN code or screen unlock pattern.
- 🔒 All saved Wi-Fi networks and passwords for them will be deleted.
- 🎧 Connections with Bluetooth devices will be terminated.
- 📱 The mobile network settings (APN access points) will be reset.
After the reboot, you will have to reconnect to your home Wi-Fi and check the operation of the mobile data. In most complex cases, it is this step that finally eliminates the name resolution error.
⚠️ Attention: After resetting the network settings, the access point (APN) parameters of your mobile operator may change. If the mobile data does not work, contact your operator's support to get the latest APN settings.
Additional factors and third-party software
Sometimes the source of the problem is third-party applications that intercept network traffic. Antiviruses, VPN services or traffic saving apps may incorrectly filter DNS requests, blocking access to resources.
Try to temporarily disable all installed VPN applications and antiviruses. If you're using a browser with a built-in data saving mode (such as Opera Mini or Chrome Lite Mode), disable this feature as it uses its own proxy servers to compress traffic.
It's also worth checking the date and time on your device. Incorrect system clocks can lead to security certificate errors, which browsers sometimes interpret as connection or name resolution problems.
Settings → General management → Date and time → Auto-set timeMake sure the Auto-set switch is active. Synchronizing time with the operator's network server often resolves hidden conflicts in HTTPS security protocols.
If you recently installed new applications before the error appeared, try removing them one by one. Sometimes malware or low-quality optimizers can implement their network filters, causing DNS failures.
Frequently asked questions (FAQ)
Why does the error only occur in Wi-Fi, but the mobile data works?
This indicates a problem with your router or home Internet provider. Try rebooting the router by unplugging it for 30 seconds. Also check to see if your router has parental controls or DNS filtering that blocks access.
Could this error mean that my phone is infected with a virus?
The error itself Net Err Name Not Resolved is rarely a sign of a virus. More often than not, this is a technical glitch. However, if the error is accompanied by pop-up advertising or redirection to strange sites, it is worth scanning the device with an antivirus.
What to do if resetting the settings did not help?
If even a complete network reset did not eliminate the problem, it may be a hardware malfunction of the Wi-Fi module or incompatibility of the firmware version with current network standards. In this case, it is recommended to update the phone software to the latest version or contact a service center.
Does the Android version affect the frequency of this error?
Yes, on older versions Android (below 8.0) the mechanisms for working with DNS are less advanced and are more prone to failures when switching between networks. Updating the operating system often solves the problem at the software level.