Suddenly cannot access Gen 7 UI from Firefox

Larry

Error message in Firefox (109) started yesterday, Monday, but worked fine as of Friday last week.

Secure Connection Failed

An error occurred during a connection to 192.168.1.1:9443. Certificate key usage inadequate for attempted operation.

Error code: SEC_ERROR_INADEQUATE_KEY_USAGE

Firewall log shows:

HTTPS Handshake: sslv3 alert certificate unknown

I'm using DPI-SSL and the default certificate from the TZ270W since February last year.

I can access the UI from Chrome.

Not sure what might have happened or what - exactly - is going on.

Anyone with clues or suggestions?

TKWITS

Quick search shows you might have a corrupted cert store in FF.

https://support.mozilla.org/en-US/questions/1310266

Larry

Golden award to you @TKWITS because the SW CSR I called spent 20 minutes clicking around and not finding anything...