Lightburn is not connecting to Laser GRBL TTS-10W

Hi,

I having issues connecting my GRBL TTS-10 W Laser with Lightburn, I had used it before a couple time, but suddenly it doesnt want to connect anymore.

The port is correct, the USB is correct, the Software has been updated, but it stays in the connection loop.

I have gone back to the Laser GRBL software for the laser and it works fine with that one so its a Lightburn and Laser connection issue.

Looking for ideas.

I have found, more often than I like, that Windows will not release the COM port when you disconnect or turn off the laser. It is a Windows thing.

Sometimes plugging in the powered up laser and unplugging it (USB) will clear it. Sometimes I had to power down the laser and restart Lightburn.

For a while, I had a really bad time with my SF-A9 laser. The solution there was to shut everything down, boot the PC, launch Lightburn, turn on the laser, and then plug in the USB cable. I never did figure out what I was doing to make this happen, but I must have finally quit doing it.

Bottom line is Windows did not release the COM port and you have to correct for that.

This says your Device setup is likely correct, or was…

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