how to keep https enforcement on and still access laserjet M375nw

[kcintimidator]

I am trying to figure out how to KEEP https enforcement enabled on a HP color laserjet MFP M375nw and still access it on a windows 11 wired network. Many reboots and factory reset has been completed.

So everything is fully updated (except maybe firmware) but every time I try to enable HTTPS enforcement on the above printer, in both google chrome and edge I cannot access the printer via webpage, I just get error "

This site can’t provide a secure connection

10.0.0.x uses an unsupported protocol.

ERR_SSL_VERSION_OR_CIPHER_MISMATCH"

If i disable it (via printer touchscreen), i can access fine, but I want the additional security...Coming from an IT background  I have ofc tried the basics and advanced stuff but still stumped, cleared cache. cleared SSL state and have reset printer to factory defaults, also tried disabling the chrome flag chrome://flags/#allow-insecure-localhost but i can't even find that flag in chrome version 138.0.7204.169.

As i remember it in the past when the HTTPS enforcement was enabled with a self signed or expired certificate you could just click "advanced" and "continue to this site anyway".... If I know the IP is safe why or what is preventing me from using this option?

(note: i do own the product but the HP site wont show the printer in the "select from my products dropdown" using both the autodetect method (it finds it. but wont add to mine) or also by manually adding the serial number...the HP site sees it as an invalid serial when attempting manual add.)

ANY ideas?

[Qsaifoddin]

Hi @kcintimidator 

To resolve the issue you're experiencing with HTTPS enforcement on your HP Color LaserJet MFP M375nw while accessing it on a Windows 11 wired network, follow these steps:

1. Update Firmware: Ensure that your printer's firmware is up-to-date. This can help with compatibility issues, especially with the latest security protocols. You can download the latest firmware from the HP Customer Support - Software and Driver Downloads page.

2. Browser Compatibility: It sounds like you may be encountering an issue with the browser's handling of HTTPS connections. Ensure that TLS (Transport Layer Security) is enabled in your browser settings. You may also want to try using a different browser to check if the issue persists.

3. Certificate Issues: Ensure your printer's certificate is up-to-date and installed correctly:

   • Access the printer’s Embedded Web Server (EWS) without HTTPS first, if possible.
   • Navigate to the settings for HTTPS/SSL and make sure a valid SSL certificate is installed.
   • If necessary, create and install a new self-signed certificate.

4. Network Configuration: Make sure your network allows HTTPS traffic and that there are no firewall rules blocking it. Additionally, ensure your device's IP address is correctly configured.

5. Security Settings: Check that your printer’s network security settings match your network configuration. Configure your Windows 11 machine to accept the printer's current security configuration by allowing the connection as an exception if prompted.

6. Clear Cache and Cookies: Sometimes, stored data can cause issues. Clear your browser's cache and cookies and try accessing the printer’s EWS again.

7. Test with IP and DNS: Try accessing the printer using both the IP address and a DNS name (if available) to see if one works over the other.