Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Hierdie gesprek is in die argief. Vra asseblief 'n nuwe vraag as jy hulp nodig het.

Reason for error : <ip address>:8443 uses an invalid security certificate. The certificate is only valid for <ip address> Error code: SSL_ERROR_BAD_CERT_DOMAIN

more options

Getting following domain mismatch error in firefox while domain name is correct (<ip address>) Also Subject Alternative Name has value DN Name=<ip address>

Getting following message in browser

https://<ip address>:8443/ Unable to communicate securely with peer: requested domain name does not match the server’s certificate. HTTP Strict Transport Security: false HTTP Public Key Pinning: false

Getting following domain mismatch error in firefox while domain name is correct (<ip address>) Also Subject Alternative Name has value DN Name=<ip address> Getting following message in browser https://<ip address>:8443/ Unable to communicate securely with peer: requested domain name does not match the server’s certificate. HTTP Strict Transport Security: false HTTP Public Key Pinning: false

All Replies (3)

more options

uninstall Firefox. Then Delete the Mozilla Firefox Folders in C:\Program Files and C:\Program Files(x86) Then restart system. Then run Windows Disk Cleanup. (Note: This should be Pinned and run Weekly, If never done below expect 10's of gig's) Then run it again and click the button that says Cleanup System Files. Note: your Firefox Profile is saved. But you should make a back up before you do :

Reinstall with Current Release Firefox 57.0.2 with a Full Version Installer

Please let us know if this solved your issue or if need further assistance.

more options

or : 52.5.2 ESR. It will continue to get security updates until May 2018, and you can download and install it from this page: *https://www.mozilla.org/en-US/firefox/organizations/all/ Note : Legacy Extensions will be deleted or removed in any version update after May 2018.

You should make a backup of your Profile before going back and just because:

Please let us know if this solved your issue or if need further assistance.

more options

This could be an issue specific to IP address certificates. I don't think a non-standard port number (something other than 443) triggers a mismatch with an ordinary domain name. But I don't have an easy way to confirm that...