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How to Fix Error DLG FLAGS INVALID CA in Windows 11

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Key Takeaways
  • Error code DLG_FLAGS_INVALID_CA in Windows 11 is a technical name for the "This Site is Not Secure" error that can affect any browser, including Edge, Chrome, and Firefox.
  • Troubleshooting methods to fix the error include opening the website in a different browser, clearing browser cache for Google Chrome, Firefox, and Microsoft Edge, syncing system date and time, disabling the Warn About the Certificate Address Mismatch option, and resetting the browser to default settings.
  • If the issue persists, resetting the browser to default settings for Chrome, Firefox, and Microsoft Edge can be an effective solution.

It is very inconvenient when you open a website, and instead of loading the page, the Error DLG_FLAGS_INVALID_CA in Windows 11 occurs. This is the technical name for the โ€œThis Site is Not Secureโ€ error. It can occur on any Browser, including Edge, Chrome, Firefox, etc. If you are also facing this issue, keep reading to know how you can fix it.

How To Fix Error DLG_FLAGS_INVALID_CA in Windows 11

Fix Error DLG_FLAGS_INVALID_CA in Windows

This error occurs due to a websiteโ€™s faulty security or authority certification. However, many other reasons can cause this error to pop up. So below, we have compiled a list of some troubleshooting methods to solve this error:

Open Website in a Different Browser

Try opening the website in a different browser before starting with different troubleshooting methods to fix this error. If the website opens in the other browser, your system might have a problem. Then follow the below-mentioned methods.

Clear Browser Cache

This issue can sometimes occur due to the browserโ€™s cache data. Clear the cache data of the browser you are using and check if the issue is fixed. Here is how you can do it:

For Google Chrome

  • Open Google Chrome and click on the three vertical dots menu at the top right corner.
  • Click on Settings.

Setting Gmail As Default Email Client In Chrome

  • Navigate to Security and Privacy.
  • Click on Clear Browsing Data.
  • Check the option Cached images and files and click on Clear Data.

Error Code: DLG_FLAGS_INVALID_CA

For Firefox

  • Open Firefox and click on the hamburger icon at the top right corner.
  • Click on Settings.
  • Navigate to Privacy & Security.
  • In the Cookies and Site Data section, click on Clear Data.
  • Now click on Clear to confirm the process.

Firefox Cache

For Microsoft Edge

  • Open Microsoft Edge and click on three dots at the top right corner.
  • Click on Settings.
  • Navigate to Privacy, Search, and Services.
  • Now click on Choose What to Clear under Clear Browsing Data.
  • Select Cached images and files and hit Clear Now.

Error Code: DLG_FLAGS_INVALID_CA

Sync System Date and Time

If your system date and time is not synchronized, you can face this error. Here is how you can check and fix it:

  • Click on Start and open Settings.
  • Navigate to Time & Language.
  • Scroll down and click on Sync now under Additional settings.

Error Code: DLG_FLAGS_INVALID_CA

Disable the Warn About the Certificate Address Mismatch Option

There is a chance that the Windows update may have caused this issue on your device. Changing some settings in internet options can solve this error. Here is how you can do it:

  • Click on Start and search for Internet Options.
  • Navigate to the Advanced tab.
  • Uncheck the Warn about certificate address mismatch option under security.

Disable Warn

  • Restart your device and check if the error is fixed.

Reset your Browser

If none of the above-mentioned steps could fix this issue, reset your browser to its default settings. Here is how you can do it:

For Chrome

  • Open Google Chrome and click on the three vertical dots menu at the top right corner.
  • Click on Settings.
  • Now Navigate to Advanced > Reset and clean up.
  • Now click on Restore settings to their original defaults and follow the on-screen instructions.

Reset Chrome

For Firefox

  • Open Firefox and click on the hamburger icon at the top right corner.
  • Click on Help > More troubleshooting information.
  • Click on Refresh Firefox.

Reset Firefox

For Microsoft Edge

  • Open Microsoft Edge and click on three dots at the top right corner.
  • Click on Settings.
  • Now navigate to Reset settings.
  • Click on Restore settings to their default values and follow the instructions on screen.

Reset Edge

FAQs

What does the Error Code: DLG_FLAGS_INVALID_CA mean?

The technical name for the โ€œThis Site is Not Secureโ€ error is. It can occur on any Browser, including Edge, Chrome, Firefox, etc.

How to bypass the โ€œThis Site is Not Secureโ€ message?

If you trust the website, you can bypass this message. Click on Advanced and then on Continue.

Why does my computer say the site is not secure?

The main reason behind this error message is an invalid certificate or a decrypted connection. Follow the steps mention above to solve this error.

Wrapping Up

This was all about how to fix Error Code DLG_FLAGS_INVALID_CA. We hope that the troubleshooting methods mentioned above variable to solve this issue. Still, if you have any doubts, feel free to drop a comment below.

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Shubham Kumar
Shubham Kumarhttps://itechhacks.com/
Shubham Kumar is an IT graduate who has been developing digital content for websites since his freshman year. He writes about New Emerging Technologies and the latest tech news and tips. Shubham's love for technology allows him to be aware of the tiniest things and write with excellence.

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