How to Fix ERR_SSL_VERSION_OR_CIPHER_MISMATCH Error

Users have seen an error code ERR_SSL_VERSION_OR_CIPHER_MISMATCH when trying to open some pages or links using the browser. Once this error is displayed you are not allowed to browse this particular website. Normally, this error has been discovered on web pages that need sensitive data from the user. At times, for any site with an outdated protocol or insecure certificates, this error is displayed. In order to protect privacy, this site is marked as unsafe by the browser.



In this article, we have discussed some solutions that can help you overcome this error on your web browser. In case you are using any antivirus software, we recommend disabling it and checking if the error is fixed. Also, make sure that you have the browser updated to the latest version to see if it is the cause of this error.

Fix 1 – Enable SSL 3.0 and TLS 1.0

1: Press Windows Key and R key together to open RUN.

Type INETCPL.CPL in it and click OK

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2 – Now, click on Advanced tab.

3 -Now, scroll down the list and Check Options Use SSL 3.0 and Use TLS 1.0

 

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Fix 2 – Change Time and Time Zone to Automatic

 

1. Open Run dialog using the Windows and R keys on your keyboard.

2. Type ms-settings:dateandtime and click on OK to open Date & Time Settings.

 

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3. Make sure that you turn on the toggle associated with the options Set time automatically and Set time zone automatically.

 

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4. Then click on the Sync now button under Additional settings to synchronize your clock.

 

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5. Check if this fix has helped clear the issue with your browser accessing certain websites.

 

Fix 3 – Add Website to Trusted Sites

 

1. Press Windows + R to open Run.

2. To open Internet Properties, type inetcpl.cpl and hit the Enter key.

 



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3. Go to the Security tab.

4. Click on Trusted sites under Select a zone to view or change security settings.

5. Now click on the Sites button.

 

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6. In the Trusted sites window, enter the website address that you are trying to access (use https://) and click on Add.

 

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7. Close the Trusted sites window and click on OK to save these changes.

8. Open your browser and check if you are able to access the site without any error.

 

Fix 4 – Modify Connection Settings

 

1. Open the Run (Windows + R) dialog.

2. Type inetcpl.cpl to open Internet Properties.

 

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3. Go to the Connection tab.

4. Click on the LAN Settings button associated with the Local Area Network (LAN) Settings section.

 

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5. Make sure that all the checkboxes are unchecked except Automatically detect settings.

 

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6. Click on OK two times to confirm and save the changes.

7. Check if you are able to access the concerned webpage.

 

Fix 5 – Clear SSL State on your Computer

 

1. Press Windows + R to open Run.

2. Enter inetcpl.cpl to open Internet Properties.

 

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3. Go to the Content tab.

4. Click on the Clear SSL state button in the Certificates section.

 

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5. You will see a pop-up with a message saying The SSL cache was successfully cleared.

 

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6. Restart your browser and check if the error has been resolved.

 

Fix 6 – Delete Browser Cache and Cookies

 

Many users have suggested that deleting the browser cache and cookies has been useful with this issue.

1. For most of the browsers the Ctrl + Shift + Delete key combination opens the Clear browsing data window.

2. In this change the Time range to All time to clear all the history.

3. Make sure to uncheck options related to logins/passwords.



4. Click on Clear data.

 

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5. Restart your browser and check if the problem is resolved.

 

Fix 7 – Disable Chrome’s QUIC Protocol

 

QUIC is a new protocol developed by Google that allows faster and efficient web access. It has been found that sometimes this protocol can lead to ERR_SSL_VERSION_OR_CIPHER_MISMATCH error. Disabling this protocol has helped many Chrome users fix the issue.

 

1. Open Chrome.

2. Type chrome://flags in the browsers’ address bar.

3. Use the search box at the top and type QUIC to look for the corresponding option.

4. You will see Experimental QUIC protocol in the search results.

5. Use the dropdown associated with it and change it to Disabled to disable the protocol.

 

Chrome Flags Disable Quic Protocol Min

 

6. Close and open Chrome again. Check if the problem is fixed.

 

Thanks for reading.

 

We hope that we have been able to help you overcome the ERR_SSL_VERSION_OR_CIPHER_MISMATCH error on your browser. Comment and let us know if you found this helpful and the fix that worked for you.