printer blocked - bad certificate

[lukaegi]

i can't proceed to print any files from my samsung android phone to hp laserjet pro MFP. but before, it has no problem. then suddenly, i can't print any files until now. 

[lukaegi]

printer blocked -  bad certificate are appearing on my phone

[Raj_05]

Hi @lukaegi,

Welcome to HP Support Community.

Thank you for posting your query, I will be glad to help you.

It sounds like your Samsung phone is encountering a certificate issue when trying to connect to your HP LaserJet Pro MFP printer. This issue can occur if there's a problem with the printer's security certificate or if there's a mismatch between the certificate on the printer and the one expected by your phone.

Here are some steps you can take to resolve this.

Check for Firmware Updates:

• Ensure your HP LaserJet Pro MFP has the latest firmware. Go to the HP website, find your printer model, and download any available updates.

Check Printer's Security Settings:

• Access the printer’s web interface by entering its IP address into a web browser. Check the security settings and look for any issues related to certificates or security.

Reinstall Printer on Phone:

• Remove the printer from your phone's list of available printers and add it again. This can sometimes resolve certificate and connectivity issues.

Reset Printer to Factory Settings:

• If the above steps don’t help, you might consider resetting the printer to its factory settings. Be sure to back up any necessary configurations before doing this.

I hope this helps.

Take care and have a good day.

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Alden4

HP Support