HP Laser Printer Network / IP / EWS Errors – Causes, Diagnosis, and Step-by-Step Resolution

Network, IP, and EWS (Embedded Web Server) errors are common on HP LaserJet and HP All-in-One printers connected via LAN or Wi-Fi.
These issues typically result in printing failures, offline status, IP conflicts, or inability to access the printer’s web interface, impacting multi-user office environments.

This Knowledge Base article explains HP network/IP/EWS errors, their technical causes, and systematic troubleshooting steps for IT administrators and support teams.

What Are HP Network / IP / EWS Errors?

These errors occur when the printer cannot:

• Obtain or retain a valid IP address

• Communicate reliably over the network

• Respond to HTTP/HTTPS requests for EWS access

Common Error Messages & Symptoms

• Printer Offline

• Unable to Connect to Printer

• EWS Page Not Opening

• IP Address Changed

• Printer Not Found on Network

• Communication Error

These issues are network-layer problems, not print-engine faults.

Technical Explanation

HP network-enabled printers include:

• Network interface (LAN / Wi-Fi)

• TCP/IP stack

• DHCP or Static IP configuration

• Embedded Web Server (EWS) for management

Errors occur when:

• DHCP assigns a new IP address

• IP conflict exists on the network

• Incorrect subnet/gateway is configured

• Firewall blocks printer ports

• Network firmware becomes unstable

• HTTPS certificates or EWS services fail

Common Use Cases Where This Error Appears

• Router reboot or network changes

• Printer moved to a new VLAN or subnet

• Power cut causing IP reassignment

• Firewall or antivirus update

• Switching from USB to network printing

• Accessing EWS via incorrect protocol (HTTP/HTTPS)

Step-by-Step Troubleshooting & Resolution

Step 1: Check Physical Network Connection

• Verify LAN cable is firmly connected

• Check link lights on printer LAN port

• Try a different Ethernet cable or switch port

• For Wi-Fi: confirm printer is connected to correct SSID

Step 2: Print Network Configuration Page

From printer control panel:

• Navigate to Reports / Network Summary

• Note:

  • IP Address

  • Subnet Mask

  • Gateway

  • Network Status

✔ Confirms whether printer is correctly connected

Step 3: Test Network Connectivity

From a computer on same network:

ping <printer-ip-address>

Step 4: Assign Static IP Address (Recommended)

To prevent IP changes:

1. Access printer control panel or EWS

2. Set Manual / Static IP

3. Assign unused IP within subnet

4. Save and reboot printer

✔ Prevents offline issues caused by DHCP changes

Step 5: Fix EWS (Embedded Web Server) Access

If EWS does not open:

• Try both:

  • http://printer-ip

  • https://printer-ip

• Clear browser cache

• Use a different browser

• Disable proxy temporarily

• Ensure port 80 / 443 is not blocked

Step 6: Recreate Printer Port on Computer

1. Remove printer from Devices and Printers

2. Add printer manually

3. Choose Standard TCP/IP Port

4. Enter static IP address

5. Avoid WSD ports

Step 7: Restart Network Services (Windows)

net stop spooler
net start spooler

Restart PC if required.

Common Issues & Fixes

Security Considerations

• Change default EWS admin password

• Disable unused protocols (FTP, Telnet)

• Use HTTPS for EWS where supported

• Restrict printer access via VLAN

• Keep printer firmware updated

Best Practices

• Always use static IP for office printers

• Document printer IPs and hostnames

• Avoid WSD ports in enterprise setups

• Schedule firmware updates during off-hours

• Use print servers for large environments

Conclusion

HP Network / IP / EWS errors are connectivity and configuration issues, not hardware failures.
Most problems are resolved by assigning static IPs, recreating TCP/IP ports, and ensuring EWS accessibility.

Proper network planning and security hardening prevent recurring printer offline issues.

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