Unox BAKERLUX SHOP.Pro - Error E11: DNS Is Not Working

⚠️ Caution / Monitor Closely
Warning: The information provided here is for educational purposes only. Working with commercial kitchen equipment involves high voltage, gas, and high temperatures. We strongly recommend contacting a certified service technician for any repairs. We are not responsible for any damage or injuries resulting from DIY repair attempts. This information is provided 'as is' without any guarantees of completeness or accuracy.

TLDR

On your BAKERLUX SHOP.Pro unit, error E11 indicates that the oven's DNS resolution is failing, preventing communication with Unox servers. This typically points to an incorrect DNS address setting or a network configuration issue. You must verify and correct the network settings, particularly the DNS server addresses, within the oven's control panel or your DHCP server.

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Technical Details

Repair Steps:

  1. Check Network Configuration: Access the oven’s network settings menu, typically found under “Settings” or “Configuration” on the control panel. Verify if the oven is set to obtain IP and DNS addresses automatically (DHCP) or manually.
  2. Verify DNS Settings (Manual Configuration): If manually configured, ensure the primary and secondary DNS server addresses are correct. These should be provided by your network administrator or ISP. Common public DNS servers like Google’s (8.8.8.8, 8.8.4.4) can be tested. Also, ensure the IP Address, Subnet Mask, and Gateway are correctly configured for your network segment.
  3. Verify DNS Settings (DHCP Configuration): If DHCP is enabled, ensure your DHCP server is configured to provide valid DNS server addresses. Consider toggling DHCP off and then back on, or try rebooting the network router/switch to force a fresh IP/DNS lease.
  4. Network Connectivity Test: Many UNOX ovens have a built-in network test or diagnostic tool. Use this to ping the gateway, local DNS servers, and external addresses (e.g., 8.8.8.8 or Unox cloud services if an option is provided). A successful ping indicates basic network layer connectivity.
  5. Firewall and Router Check: Consult your network administrator to check if a firewall is blocking outgoing connections on specific ports (e.g., HTTP/S, custom ports for Unox services) from the oven’s IP address. Ensure the router is functioning correctly and has internet access. Temporarily connect another device to the same network segment as the oven to verify internet connectivity.
  6. Oven Reboot: Perform a soft reboot of the UNOX oven. Turn it off, wait 30 seconds, then turn it back on. This can sometimes resolve transient network issues.
  7. Consult Network Administrator: If all basic checks fail, the issue is likely deeper within the network infrastructure. Engage a qualified network administrator to diagnose router, switch, firewall, or ISP connectivity problems.

Common Questions:

Q: What is DNS and why is it important for my UNOX oven?

A: DNS (Domain Name System) translates human-readable website names (like “unox.com”) into machine-readable IP addresses. For your UNOX oven, a working DNS is crucial for connecting to Unox cloud services, downloading software updates, and accessing remote diagnostics. Without it, the oven cannot find and communicate with these online resources.

Q: Can I still use my UNOX oven for cooking with an E11 error?

A: In most cases, yes. The E11 error primarily affects the oven’s ability to communicate with external Unox servers for smart features, updates, or remote monitoring. Core cooking functions, such as baking or steaming with pre-loaded programs, should generally remain operational as they rely on local controls. However, full functionality is compromised.

Q: Who should I contact if I can’t resolve the E11 error myself?

A: If basic network checks and reconfiguring DNS settings do not resolve the E11 error, you should first consult your restaurant’s IT or network administrator. If they confirm that the local network is functioning correctly and providing proper DNS, then contact a certified RestoFixer commercial kitchen technician or Unox support for further diagnostics, as there might be an internal network hardware issue within the oven.

When to call a technician

Consider calling a certified technician if:

  • The error keeps coming back after you've tried the steps above.
  • You're not comfortable doing the checks or repairs yourself.
  • You notice unusual noise, smell, or behaviour.
  • Equipment is under warranty and you want official service.
  • You need the unit back in service quickly with minimal downtime.

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