---
title: LightBurn Cannot Connect to Edge Fiber Laser
description: Troubleshoot LightBurn connection problems with Edge Fiber lasers.
---

[Skip to content](https://support.salasers.com/lightburn-cannot-connect-to-edge-fiber-laser#main-content)

English

Show submenu for translations

[Submit a Ticket](https://support.salasers.com/kb-tickets/new?hsLang=en)

![MicrosoftTeams-image.png\]](https://support.salasers.com/hs-fs/hubfs/Logos/MicrosoftTeams-image.png?height=50&name=MicrosoftTeams-image.png)

Open main navigation

Close main navigation

- English
  
  Show submenu for translations
- [Submit a Ticket](https://support.salasers.com/kb-tickets/new)
- Go to salasers.com

 Go to salasers.com

 Hello. How can we help you?

- There are no suggestions because the search field is empty.

1. [SA Laser Knowledge Base](https://support.salasers.com/?hsLang=en)
2. [Fiber (Galvo) Lasers](https://support.salasers.com/fiber-galvo-lasers?hsLang=en)
3. [Troubleshooting](https://support.salasers.com/fiber-galvo-lasers?hsLang=en#troubleshooting)

# LightBurn Cannot Connect to Edge Fiber Laser

## Communication issues between LightBurn and the laser are usually caused by driver or USB connection problems.

Symptoms

• Device not detected  
• Job will not start  
• LightBurn shows connection error

Possible Causes

• USB cable disconnected  
• Drivers not installed  
• Incorrect device profile

Diagnostics

Step 1 — Verify USB Cable  
Reconnect the USB cable.

Step 2 — Restart LightBurn  
Restart the software.

Step 3 — Verify Device Profile  
Ensure the correct fiber device profile is selected.

Solution

Reconnect the device and reinstall drivers if necessary.

Conclusion

Most communication issues are resolved by reinstalling drivers or reconnecting the USB cable.

- [Lightburn](https://support.salasers.com/lightburn?hsLang=en#main-content)

    - [Lightburn For Galvo (Fiber)](https://support.salasers.com/lightburn?hsLang=en#lightburn-for-galvo-fiber)
    - [Lightburn For Gantry (Co2,RF)](https://support.salasers.com/lightburn?hsLang=en#lightburn-for-gantry-co2rf)
- [Fiber (Galvo) Lasers](https://support.salasers.com/fiber-galvo-lasers?hsLang=en#main-content)

    - [Troubleshooting](https://support.salasers.com/fiber-galvo-lasers?hsLang=en#troubleshooting)
- [Co2 Lasers](https://support.salasers.com/co2-lasers?hsLang=en#main-content)

    - [Razor Series](https://support.salasers.com/co2-lasers?hsLang=en#razor-series)
- [Troubleshooting](https://support.salasers.com/troubleshooting?hsLang=en)
- [EzCad 2](https://support.salasers.com/ezcad-2?hsLang=en)
- [How-To Guides](https://support.salasers.com/how-to-guides?hsLang=en)
- [Explainers](https://support.salasers.com/explainers?hsLang=en)
- [Tools & Features](https://support.salasers.com/tools-features?hsLang=en#main-content)

    - [User Interface](https://support.salasers.com/tools-features?hsLang=en#user-interface)
    - [Essential Functions](https://support.salasers.com/tools-features?hsLang=en#essential-functions)
    - [Layout and Design](https://support.salasers.com/tools-features?hsLang=en#layout-and-design)

# San Antonio Laser

SALasers.com Help Center

Copyright © 2026, San Antonio Laser