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Experiencing a domain server mismatch? Try these easy fixes
5 min. read
Updated onOctober 4, 2023
updated onOctober 4, 2023
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Key notes
What makes troubleshooting anetworkorInternet connectionparticularly arduous is discerning between whether it’s a hardware issue or a software one.
For instance, as a Google Chrome user, you may have tried to access awebsiteonly to receive a message not dissimilar to this one:
Thisservercould not prove that it is accesswebsite.com; its security certificate is from example.com. This may cause a misconfiguration or an attacker intercepting your connection.
For those who have the misfortune of usingInternet Exploreror Microsoft Edge, your message may look like this:
The security certificate presented by thiswebsitewas issued for a differentwebsite’s address.
Security certificate problems may indicate an attempt to fool you or intercept any data you send to theserver.‘
Thewebsiteyou’re trying to access may very well be your own. If you trust thewebsiteyou’re trying to access and would like to stop your browser from flashing this message in the future, the following guide will show you how.
What to do if my domain doesn’t match a server’s certificate?
1. Google Chrome Workaround
Not so long ago, Google Chrome removed support for commonName matching in certificates. Because of this, it may cause domain name mismatch issues with olderwebsites.
If you’re tired of seeing the above message forwebsitesyou’re trying to run locally or Google Chrome, you can disable it completely using these steps:
Getting a NET:: ERR_CERT_INVALID error on Google Chrome? Try these easy fixes.
2. Microsoft Edge and Internet Explorer workaround
3. Mozilla Firefox workaround
4. How to solve a CN Mismatch Error for your own site
The issue may be that the rightwebsitewas not included in your common name(s) by mistake.
For instance, you may have purchased a certificate for awebsitewith the common name www.windowsreport.com but you may have not added windowsreport.com in the list of Subject Alternative Names (SANs).
Consequently, you’ll need to contact the issuer of the certificate to change the SAN. In some cases, SSL companies allow you to modify some of the information on the certificate through a portal.
If you’re using a shared host, where a hosting company allows you to share an IP address with otherwebsites, this could cause issues with yourwebsite.
You should also check your firewall and load balancer settings on theserver-side. One of the most common issues may stem from an incomplete server certification installation.
In that case, you’ll need to deploy the chain certificate file to theserverhosting yourwebsite.
This can be accomplished by downloading the chain certificate from the issuer and then installing it on theserver. You’ll need to find your server-specific instructions for installation.
Most SSL/TLS certification errors can be solved by contacting the issuer. Either way, let us know how you managed to solve this issue by leaving a comment below.
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More about the topics:certificate error,DNS,error
Vlad Turiceanu
Windows Editor
Passionate about technology,Windows, and everything that has a power button, he spent most of his time developing new skills and learning more about the tech world.
Coming from a solid background in PC building and software development, with a complete expertise in touch-based devices, he is constantly keeping an eye out for the latest and greatest!
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Vlad Turiceanu
Windows Editor
Coming from a solid background in PC building and software development, he’s a Windows 11 Privacy & Security expert.
