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ComTech D Series: Web UI Connection Lost in Mozilla Firefox

Escalation Article


Written by Daniel Fabriczy

Updated at August 25th, 2026

Table of Contents

Brand: Affected Products: Summary: Troubleshooting:

Brand:

  • Crown

Affected Products:

Crown ComTech D Series Amplifiers

  • CTD-2125
  • CTD-4125
  • CTD-8125

Summary:

  • When accessing the Web UI of Crown ComTech D Series amplifiers using the Mozilla Firefox web browser, the connection continually drops and displays an error stating the device has lost connection.  Updating the amplifier firmware to version v1.0.3.0 or higher resolves this behavior and ensures stable Web UI operation across all supported web browsers.

Troubleshooting:

  • Workaround: If immediate firmware updating is not feasible, access the Web UI using alternative browsers such as Google Chrome or Microsoft Edge, which remain stable on older firmware versions.
  • Verification: Update the unit to firmware version v1.0.3.0 or higher, navigate to the amplifiers' IP address using Mozilla Firefox, and confirm that the Web UI session maintains a stable connection without dropping.

 

 

 

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Table of Contents

Brand: Affected Products: Summary: Troubleshooting:

Related Articles

  • Crown ComTech D Power Sharing Amplifiers with DSP & Dante | Product Overview
  • Auto Standby functionality in ComTech D
  • ComTech D Series Amplifiers: How to apply Speaker Tunings
  • ComTech D Series Amplifiers: Dante Network Setup and Best Practices
  • CTD-8125 Power Sharing Amplifier FAQ

Related Articles

  • Crown ComTech D Power Sharing Amplifiers with DSP & Dante | Product Overview
  • Auto Standby functionality in ComTech D
  • ComTech D Series Amplifiers: How to apply Speaker Tunings
  • ComTech D Series Amplifiers: Dante Network Setup and Best Practices
  • CTD-8125 Power Sharing Amplifier FAQ
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