In today’s post, you will find out full explanation on why you see Error Code: DLG_FLAGS_INVALID_CA and how to get rid of this error.
Sometimes when you open your favorite website it shows various error message like “Security Certificate is Not Secure,” “This Site is Not Secure” or maybe other accompanied with the Error Code: DLG_FLAGS_INVALID_CA DLG_FLAGS_SEC_CERT_CN_INVALID.
The scariest part of this error message is the following lines which read:
After reading these lines most of the users instantly close the websites. I’m sure the person reading this post right now also faced the same thing.
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Error Code: DLG_FLAGS_INVALID_CA
The worst thing about this error code is that users don’t even have any idea why they are seeing DLG_FLAGS_INVALID_CA error code.
To help users, I decided to write this post in which I’m going to explain why users see this mysterious error message and what are the possible solutions to get rid of it. So that you can surf your favorite website.
Error Code: DLG_FLAGS_INVALID_CA Explanation
There might be a variety of the reasons why you’re reading this certificate error message in the web browser, but following the popular reasons:
- When the website certificate is not installed precisely.
- When the website certificate is expired, or the administrator does not renew it.
- The chances are that website you’re visiting is compromised or the site has a malicious redirection.
So all the reasons suggest that you see the certificate error code on your favorite website due to the administrator. There is nothing wrong with your side.
Options Available on a Web page with Certificate Error
- Go to your Start page or Back to safety. When the user clicks on these buttons page, the browser takes users to start page of the tab to ensure the overall protection of the user.
- Advanced or Details option available. When the user clicks on these links, it shows another link telling you Go on to the homepage(Not recommended) or Proceed to the website (Note Safe)
Now it’s all your wish whether you want to visit this website or not.
Note: Different browsers show different options)
Fix – Error Code: DLG_FLAGS_INVALID_CA
In most of the cases, when an error is due to this administration end, then you can do nothing about the Certificate error. In some cases, users can see this error because of their default browser using to surf the web. In this situation, you can try following solution to resolve the error:
Clear Browser Cache
Try to clear the cache of the default web browser. Close the browser and try to revisit the same webpage.
In Google Chrome paste following address in the address bar chrome://settings/clearBrowserData. Make sure “Caches images and files” option is selected. Click on the Done button, and it will clear the cache.
In Microsoft Edge click on (…) More action option and navigate to Settings -> Choose What to Clear under Clear browsing data. Here make sure Cached Data and Files option is selected. Click Clear button.
You can make a web search to learn the method to clear cache on remaining web browser.
Open Website in the Different browser
After following the above workaround, the site still showing the “This Site is Not Secure” or “Security Certificate is Not Secure,” then maybe the problem is with your default browser. To troubleshoot this, you can try to visit the same website on a different site and check if this fixes the issue.
If the same website is working fine in another browser, then it is time to reset your browser to default settings.
Note: Following workaround will only work if you see certificate error because of your web browser.
What is Recommended?
If you highly trust the website you’re visiting; then you can ignore the warning message and visit the website. Also, if you have even a little doubt about if the site is genuine or not, I recommend not to visit the website.
In case, the website trusted by your regularly showing you the same certificate message back to back, then it is a good idea to drop a note to the administrator of the website. In the message, you can explain the whole issue with a screenshot so that admin can resolve the issue.
Recommended Reading – Fix: There is a Problem with this Website’s Security Certificate in Internet Explorer || Explained: Firefox Connection is Not Secure Error
I hope you find this article useful. Let me know your thoughts in the comments 🙂
Hello,
I’m receiving this message on a page I created, and don’t know how to correct the error. My site is http://www.TLChomestampa.kw.com
Can you help me figure this out? I contacted the Tech guy at the Keller Williams office I work for, and he said its a browser issue. But I think its a bit more then that because It just recently happened.
Thanks for sharing this issue with me. Could you please tell who’s the owner of this website. If you’re are the owner, then do you have access to hosting cpanel?
This is happening on my website primsandpretties.com. I’ve had more ridiculous work arounds presented and of course none of them work. Could you please advise or help me out in any way? I own the domain and site and host through yahoo web hosting/abaco.
What’s the problem you facing? It is opening fine to me 🙂
Microsoft Edge reports this, which helps explain another reason why folks might get this message:
The hostname in the website’s security certificate differs from the website you are trying to visit.
Error Code: DLG_FLAGS_SEC_CERT_CN_INVALID
In my case, I have two domain names pointing to the same server. The certificate of the server can only match to one of the domain names. So if you recently changed domain names, be sure to also update your server certificate.
Thanks for sharing this with us, really appreciate that 🙂
Could I be receiving this error due to a block by my employer? None of the above options work.
Block by my employer means? Could you explain this thing??
Meaning that my employer has a block in place to not allow certain sites to be visited. I don’t think their block could produce this error but I could be wrong.
Nop this is not the reason causing the issue. Mostly this happens when the website you’re visiting is having
invalid or expired certificate,
the website is hacked,
the website has malware inside the code,
Did u try to visit the website using a different web browser?
I have tried chrome and edge and still getting the same result. cleared all cache, cookies, etc. I can’t imagine the facebook website being hacked.
Please check the date and time, is it correct? Could you please share the screenshot?
The screenshot shown above matches that of which I am receiving.
Got this Error on IE for websites http://www.youtube.com and mail.google.com but not on google.com on one laptop while an hour ago both worked fine.
On chrome I get NET::ERR_CERT_AUTHORITY_INVALID error for those websites.
In Firefox I get SEC_ERROR_UNKNOWN_ISSUER for these websites.
I can visit these websites without any issues on another laptop.
Disabling Symantec End point protection does not change a thing.
So its not the websites since they work fine on other laptop. Its not a browser because all browsers show some sort of error. Thus it is the laptop. But what?
ah found it. Our company is supplying the certificates and its root cert was not trusted. Had to install it to fix it.
Seems like your system is infected with malware or some sort of malicious program. Try to perform the antivirus scan and check if you find anything?