Sunday night used laser and as I shut down the computer for night, I got the updates available message so I selected update and shut down. The next day an on, I cannot reestablish a connection. Assuming if might be related to the last update, I removed it but still no go! The laser control box in Lightburn says disconnected and when I try to start or send I get file transfer failed, machine may be busy or paused. I have cleared files from the Ruida and reset, no go. When I unplug my USB from the laser my computer rings a tone recognizing that it has been disconnected so? On the laser control window in Lightburn my connection option is only auto and I seem to remember there being a Com3 at one time? Could that be it? If so, where/how do I get it back? I have been using this machine for 2+ years and never had an issue. I just got a large order too…of course. Any help would be appreciated! Thank you.
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What I’ve seen in the past, is that Windows updates sometimes modifies the drivers loaded.
I’d give a look at drivers for Lightburn… Not a windows person, so can’t help much more than that…
Which update? Maybe someone had the same thing occur…
Thanks Jack. Actually got it working late last night. After many searches I found a thread where a gentleman downloaded the RDWorks driver so I gave that a try. It worked! My Com3 is back and I’m very happy!
Generally a driver gets removed… thanks windows… 
Glad it’s fixed… mark the thread solved…
Have fun
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