I have also a Port failed to open - already in use message

[pilandros (Jorge Papadopolo)]

I’ve been running my laptop Win10 hooked to a Saintsmart 3018 Laser Pro and was running just fine up until the Lightburn software asked to upgrade to 1.2.04 then my Laser CNC stop connecting with the “port failed to open” problem. What can I do? I can see the USB port number assigned to the Laser when hooked, but there is NO way to select or tell Lightburnj to use that USB port number, or is it? I´ve been running the generic Laser GRBL software instead ever since with no problems (because you can tell that software which port to use). Anybody help with this issue?

[berainlb (PY)]

@pilandros

but there is NO way to select or tell Lightburnj to use that USB port number, or is it?

In Laser window, there is a between the “Devices” button and device name which is used to select port.

[pilandros (Jorge Papadopolo)]

THANKS sooo very much!
I never saw that bottom line just because the Lightburn window was larger than the size of the current window on my laptop. I feel sooo dumb. Thanks again. It is running perfect now

[psalad]

I tried all ports neither works…Please help