I cannot Sign In to my printer

[BigSteevie]

My operating system is actually macOS 15, but that was not an option.

When I try to sign in, either using "Printer User" or "Device Administrator", and I enter the PIN, I always get "Invalid Sign-In - The sign-in attempt was unsuccessful."  I've tried changing the password, but that doesn't work.  Interestingly, I can access the EWS via Safari, but not Chrome on my computer.  Not sure where to go next.  Suggestions?

I'm trying to set up Scan to Email.  Thanks.

[VikramTheGreat]

Hi @BigSteevie,

Welcome to the HP Support Community.
 

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

If you are experiencing difficulties signing into your HP Color LaserJet Pro MFP 3301sdw and receiving "Invalid Sign-In" errors, here are some steps you can take to troubleshoot and resolve the issue:

1. Use Safari or Firefox for EWS Access

Since Safari works, continue using it to access the Embedded Web Server (EWS):

• Enter the printer’s IP address in Safari (e.g., http://192.168.x.x)
• Sign in as Administrator (not "Printer User")
• If you don’t know the password, try the default (often blank) or reset it via the control panel

2. Reset the Administrator Password (if needed)

If you can't sign in:

• On the printer control panel, go to:
  • Settings > General > Reset Factory Settings > Reset Admin Password
• Then try logging in again via EWS

🔗 User Guide

Setting Up Scan to Email

Once signed in to EWS:

1. Go to the Scan tab
2. Select Scan to Email Setup Wizard
3. Enter your SMTP server settings (e.g., Gmail, Outlook, etc.)
4. Make sure:
   • Authentication is enabled
   • The From address is not set to "User Address (sign-in required)" — this causes errors 

🔗 HP LaserJet Pro MFP - "Scan to Email feature is not available for use" error message is displayed on...

I hope this helps.

Take care, and have an amazing day!
 

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Regards,

VikramTheGreat