cannot connect to wireless setup for new printer error code -4

[Barb208]

Keep getting error code  -4 and cannot connect to wireless setup for HP OfficeJet Pro 8139e

[VikramTheGreat]

Hi @Barb208,

Welcome to the HP Support Community.
 

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

I understand how frustrating it is to see error code -4 when you’re just trying to set up your new HP OfficeJet Pro 8139e on Wi-Fi. That error usually means the printer cannot complete the wireless setup due to network communication issues. Let’s fix this step by step:

Why does Error Code -4 Happens

• The printer can’t reach the router or the internet.
• Incorrect Wi-Fi credentials.
• Router settings (like MAC filtering or firewall) are blocking the printer.
• The HP app is unable to communicate with the printer during setup.

Step-by-Step Fix

1. Restart Everything

• Power cycle your printer, router, and device (phone/PC).
• Wait 2–3 minutes for the network to stabilize.
   

2. Check Wi-Fi Requirements

• Printer supports 2.4 GHz networks (not 5 GHz only).
• Ensure your device is on the same network as the printer.
   

3. Reset Printer Network Settings

• On the printer control panel: 
  • Tap Setup > Network Settings > Restore Network Defaults.
• This clears old settings and prepares for a fresh setup.
   

4. Use HP App

• Download HP App – For HP Printers, Laptops, and Tech Accessories | HP® Official Site.
• Add your printer again and follow the on-screen steps.
   

5. Temporarily Disable VPN/Firewall

• If you’re using a VPN or a strict firewall, disable it during setup.
   

6. Advanced Router Check

• Ensure MAC address filtering is off.
• Enable DHCP (automatic IP assignment).

I hope this helps.

Take care and have an amazing day!
 

Did we resolve the issue? If yes, please consider marking this post as "Accepted Solution" and click "Yes" to give us a helpful vote - your feedback keeps us going!

Regards,

VikramTheGreat