Connection errors

Network restrictions may prevent you from accessing the site. Those might be caused by software (antivirus programs, firewalls, or viruses), or network settings on the provider side (such as proxy servers).

Check whether you can access the site on another computer from a different network to make sure that the site works. If the site fails on your computer only, we recommend contacting your system administrator or your provider's support. If you can't open the site only in Yandex Browser, temporarily disable your antivirus or firewall. They might be blocking the connection.

Press Ctrl + F5 (on Windows) or ⌘ + R (on macOS) to refresh the page and its cache.

Delete all cookies for that page:

1. Click  → Settings → Websites.

2. Scroll down the page and click Advanced site settings.

3. In the Cookies section, click Cookies and site data.

4. Hover over the desired site and click the Remove link that appears to the right of the site name. All cookies of this page will be deleted.

Clear cache:

1. Click  → History → Clear history or press Ctrl + Shift + Del (on Windows) or Shift + ⌘ + Backspace (on macOS).

2. Under Clear history, select the time period that you want to delete the cache for.

3. Select the Files stored in cache option.

4. Deselect all other options (if you want to clear only the Yandex Browser cache).

5. Click Clear.

To check whether extensions are blocking a page from displaying, open the site in Incognito mode. If the problem doesn't persist in Incognito mode, try identifying the extension that causes the connection error.

1. Click  → Extensions and turn off all extensions.

2. Restart Yandex Browser: close it by pressing Ctrl + Shift + Q (on Windows and Linux) or ⌘ + Q (on macOS), then open it again.

3. Clear your cache so Yandex Browser doesn't load a copy of the page that was saved earlier.

4. If this solves your problem, go through your extensions and turn them back on until you find the one that causes the problem. Restart Yandex Browser every time.

5. Disable this extension. You may want to let the developers know about the problem.

1. Click  → Settings → System.
2. Under Performance, find the option Use hardware acceleration if possible. If the option is enabled, try disabling it and then restarting your browser. If the option is disabled, enable it instead and restart your browser.

1. Open the Windows shell. Press Windows + R or type "Run" in the search bar. In the window that opens, type cmd.
2. Enter ipconfig /flushdns.
3. Restart your network connection.

You can also specify a DNS server manually. To do this:

1. On your device, go to Control Panel → Network & Internet → Change adapter options.
2. Right-click your internet connection and select Properties → Internet Protocol Version 4 (TCP/IPv4).
3. Manually enter the DNS addresses (for example, see https://dns.yandex.com/ for the Yandex DNS servers).

1. Downloading the certificates to your computer using the following links:

   • Certum CA

   • Certum Trusted Network CA

   • GlobalSign Root CA — R1

   • GlobalSign Root CA — R2

   • GlobalSign Root CA — R3

2. The Certum CA and Certum Trusted Network CA certificates will be downloaded to your computer in TXT format. Remove the .txt extension from them:

   1. Open the Windows Control panel.

   2. Click Folder Options (in Windows 10, click File Explorer Options).

   3. On the View tab, disable option Hide extensions for registered file types.

   4. Click Apply.

   5. Open the Certum CA certificate in Notepad and save it after removing the .txt extension to get the CA.pem file.

   6. Open the Certum Trusted Network CA certificate in Notepad and save it after removing the .txt extension to get the CTNCA.pem file.

3. Import each certificate one by one:

   1. Open the Windows shell. Press Windows + R or type "Run" in the search bar. In the window that opens, run the certmgr.msc command.

   2. Open the Trusted root certification authorities folder and then the Certificates folder.

   3. Click Action → All Tasks → Import. Certificate Import Wizard starts.

   4. Tap Next.

   5. Select the certificate and click Next.

   6. Make sure that the Certificate store field is set to Trusted root certification authorities. Tap Next.

   7. Click Finish.

   8. In the window that opens, click Ok.

4. Restart Yandex Browser. Click  → Close Yandex Browser, or press Ctrl + Shift + Q (on Windows) or ⌘ + Q (on macOS), then open the browser again.

1. Check the date and time on your computer.

2. Clear cache and cookies.

If the error persists, the problem is on the site's end. Report it to the site owners.

If you see this error, it means the internet connection in Yandex Browser is set to use a proxy server. If your network doesn't use a proxy server, disable this option.

1. Click → Settings → System.
2. Under Network, click Proxy server settings.
3. In the window that opens, go to the Connections tab and click Network settings.
4. In the window that opens, clear the option Use a proxy server for your LAN.

Some extensions, such as VPNs and ad blockers, may change your network settings. To see if any extensions are affecting Yandex Browser, open the site in Incognito mode. If the issue doesn't persist in Incognito mode, try identifying the extension that causes the error.

1. Click  → Extensions and turn off all extensions.

2. Restart Yandex Browser: close it by pressing Ctrl + Shift + Q (on Windows and Linux) or ⌘ + Q (on macOS), then open it again.

3. Clear your cache so Yandex Browser doesn't load a copy of the page that was saved earlier.

4. If this solves your problem, go through your extensions and turn them back on until you find the one that causes the problem. Restart Yandex Browser every time.

5. Disable this extension. You may want to let the developers know about the problem.

On Windows, open the Start menu and go to Settings. Click Network & Internet → Advanced network settings → Network reset.

Use this method only as a last resort. To reset settings:

1. Click  → Settings → System.

2. Click Reset settings.

3. Confirm the reset.

Errors most commonly occur because of incorrect date and time settings on the computer. To change the time:

1. Find the date and time in the lower-right corner of the screen. Right-click them.
2. Click Adjust date and time.
3. Enable the options Set time zone automatically and Set time automatically.

Errors may also occur if you're using an outdated version of Yandex Browser. To find out what version of Yandex Browser you're using, click  → Help → About Yandex Browser or enter browser://help in the SmartBox.

If an update is available, install it and restart Yandex Browser.

Delete all cookies for that page:

1. Click  → Settings → Websites.

2. Scroll down the page and click Advanced site settings.

3. In the Cookies section, click Cookies and site data.

4. Hover over the desired site and click the Remove link that appears to the right of the site name. All cookies of this page will be deleted.

Clear cache:

1. Click  → History → Clear history or press Ctrl + Shift + Del (on Windows) or Shift + ⌘ + Backspace (on macOS).

2. Under Clear history, select the time period that you want to delete the cache for.

3. Select the Files stored in cache option.

4. Deselect all other options (if you want to clear only the Yandex Browser cache).

5. Click Clear.

1. In the SmartBox, enter browser://flags.
2. Press Enter.
3. In the search bar, enter TLS.
4. Make sure that all experiments related to TLS and SSL are set to Default. If you've changed any settings, restart the browser.

This error occurs if the user opens a site that uses the TLS 1.0 or 1.1 protocol. Yandex Browser doesn't support older versions of this protocol. The minimum supported version is 1.2.

Try the following solutions:

• Check if the problem persists in any other browser (Firefox, Google Chrome, Internet Explorer, Edge).
• If your PC has an antivirus installed, try temporarily disabling it: the page may be blocked by the antivirus.
• Check if the site works with a new Yandex Browser profile: click  → Settings → General settings → Users → Add user. After you click Add user, a new profile window opens. See if the site is accessible with this new profile.
• Reset your DNS settings: open the Windows Command Prompt (press Windows + R, enter cmd in the box that appears, then press Enter). In the command line, run the command ipconfig /flushdns, then restart your network connection.
• Go to the page browser://protect and disable the Use a secure DNS server option. If this doesn't yield the desired result, enable it again and try selecting another server.
• Check your network settings. Click  → Settings → System → Network. Click Proxy server settings. In the window that opens, open the Connections tab and click Network settings. In the window that opens, find the Automatically detect settings option and toggle it (select or clear the box). In addition, toggle the Use a proxy server for your LAN option (select or clear the box depending on its current status).

Try the following solutions:

• Check if the problem persists in any other browser (Firefox, Google Chrome, Internet Explorer, Edge).
• If your PC has an antivirus installed, try temporarily disabling it: the page may be blocked by the antivirus.
• Check if the site works with a new Yandex Browser profile: click  → Settings → General settings → Users → Add user. After you click Add user, a new profile window opens. See if the site is accessible with this new profile.
• Reset your DNS settings: open the Windows Command Prompt (press Windows + R, enter cmd in the box that appears, then press Enter). In the command line, run the command ipconfig /flushdns, then restart your network connection.
• Go to the page browser://protect and disable the Use a secure DNS server option. If this doesn't yield the desired result, enable it again and try selecting another server.
• Check your network settings. Click  → Settings → System → Network. Click Proxy server settings. In the window that opens, open the Connections tab and click Network settings. In the window that opens, find the Automatically detect settings option and toggle it (select or clear the box). In addition, toggle the Use a proxy server for your LAN option (select or clear the box depending on its current status).

Try the following solutions:

• Check if the problem persists in any other browser (Firefox, Google Chrome, Internet Explorer, Edge).
• If your PC has an antivirus installed, try temporarily disabling it: the page may be blocked by the antivirus.
• Check if the site works with a new Yandex Browser profile: click  → Settings → General settings → Users → Add user. After you click Add user, a new profile window opens. See if the site is accessible with this new profile.
• Reset your DNS settings: open the Windows Command Prompt (press Windows + R, enter cmd in the box that appears, then press Enter). In the command line, run the command ipconfig /flushdns, then restart your network connection.
• Go to the page browser://protect and disable the Use a secure DNS server option. If this doesn't yield the desired result, enable it again and try selecting another server.
• Check your network settings. Click  → Settings → System → Network. Click Proxy server settings. In the window that opens, open the Connections tab and click Network settings. In the window that opens, find the Automatically detect settings option and toggle it (select or clear the box). In addition, toggle the Use a proxy server for your LAN option (select or clear the box depending on its current status).

Try the following solutions:

• Check if the problem persists in any other browser (Firefox, Google Chrome, Internet Explorer, Edge).
• If your PC has an antivirus installed, try temporarily disabling it: the page may be blocked by the antivirus.
• Check if the site works with a new Yandex Browser profile: click  → Settings → General settings → Users → Add user. After you click Add user, a new profile window opens. See if the site is accessible with this new profile.
• Reset your DNS settings: open the Windows Command Prompt (press Windows + R, enter cmd in the box that appears, then press Enter). In the command line, run the command ipconfig /flushdns, then restart your network connection.
• Go to the page browser://protect and disable the Use a secure DNS server option. If this doesn't yield the desired result, enable it again and try selecting another server.
• Check your network settings. Click  → Settings → System → Network. Click Proxy server settings. In the window that opens, open the Connections tab and click Network settings. In the window that opens, find the Automatically detect settings option and toggle it (select or clear the box). In addition, toggle the Use a proxy server for your LAN option (select or clear the box depending on its current status).

Try the following solutions:

• Check if the problem persists in any other browser (Firefox, Google Chrome, Internet Explorer, Edge).
• If your PC has an antivirus installed, try temporarily disabling it: the page may be blocked by the antivirus.
• Check if the site works with a new Yandex Browser profile: click  → Settings → General settings → Users → Add user. After you click Add user, a new profile window opens. See if the site is accessible with this new profile.
• Reset your DNS settings: open the Windows Command Prompt (press Windows + R, enter cmd in the box that appears, then press Enter). In the command line, run the command ipconfig /flushdns, then restart your network connection.
• Go to the page browser://protect and disable the Use a secure DNS server option. If this doesn't yield the desired result, enable it again and try selecting another server.
• Check your network settings. Click  → Settings → System → Network. Click Proxy server settings. In the window that opens, open the Connections tab and click Network settings. In the window that opens, find the Automatically detect settings option and toggle it (select or clear the box). In addition, toggle the Use a proxy server for your LAN option (select or clear the box depending on its current status).

1. Click  → History → Clear history or press Ctrl + Shift + Del (on Windows) or Shift + ⌘ + Backspace (on macOS).

2. Under Clear history, select the time period that you want to delete the cache for.

3. Select the Cached files option.

4. Deselect all other options (if you want to clear only the Yandex Browser cache).

5. Click Clear.

1. Open the Windows shell. Press Windows + R or type "Run" in the search bar. In the window that opens, type cmd.
2. Enter ipconfig /flushdns.
3. Restart your network connection.

1. On your device, go to Control Panel → Network & Internet → Change adapter options.
2. Right-click your internet connection and select Properties → Internet Protocol Version 4 (TCP/IPv4).
3. Manually specify the DNS addresses. Use Yandex public DNS servers (77.88.8.8).

Check if other sites or applications have internet access. If there's no connection, restart your Wi-Fi router and computer. This helps fix network issues.

Some extensions, such as VPNs and ad blockers, may be causing the error. To see if any extensions are affecting Yandex Browser, open the site in Incognito mode. If the issue doesn't persist in Incognito mode, try identifying the extension that's causing the connection failure.

1. Click  → Extensions and turn off all extensions.

2. Restart Yandex Browser: close it by pressing Ctrl + Shift + Q (on Windows and Linux) or ⌘ + Q (on macOS), then open it again.

3. Clear your cache so Yandex Browser doesn't load a copy of the page that was saved earlier.

4. If this solves your problem, go through your extensions and turn them back on until you find the one that causes the problem. Restart Yandex Browser every time.

5. Disable this extension. You may want to let the developers know about the problem.

1. Click → Settings → System.
2. Under Network, click Proxy server settings.
3. In the window that opens, go to the Connections tab and click Network settings.
4. In the window that opens, clear the option Use a proxy server for your LAN.

1. Click  → History → Clear history or press Ctrl + Shift + Del (on Windows) or Shift + ⌘ + Backspace (on macOS).

2. Under Clear history, select the time period that you want to delete the cache for.

3. Select the Cached files option.

4. Deselect all other options (if you want to clear only the Yandex Browser cache).

5. Click Clear.

On Windows, open the Start menu and go to Settings. Click Network & Internet → Advanced network settings → Network reset.

Use this method only as a last resort. To reset settings:

1. Click  → Settings → System.

2. Click Reset settings.

3. Confirm the reset.