For the last two days, I have been having tremendous trouble getting my Elegoo Phecda to connect with Lightburn, with almost no problem before that. Nineteen out of twenty times I try to connect, I get a “Port failed to open - already in use?” error message. The one time I did get it to connect, I couldn’t figure out what I did differently. I’ve attached system info files, but the TL;DR version is Windows 11 on a ROG Strix G513QY laptop.
As far as troubleshooting, I have tried all of the following, multiple times:
- Disconnect and reconnect USB cable (min: 1 min.)
- Power down Phecda (min: 1 min.)
- Combinations of both above
- Rebooting Laptop
- Removing and reinstalling CHB driver
- Removing and reinstalling COM port
- Change COM port designation (from 8 to 11, etc.)
- Removing Lightburn 1.4.03 and installing 1.4.01 (with which previously I had no problems, but wasn’t helpful this time.)
I suspect a Windows Update has messed with my connection, but I haven’t been able to figure out which one, installed in the last few days, might have done it:
Quality Updates:
- 2023-10 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11, version 22H2 for x64 (KB5031323)
- 2023-10 Cumulative Update for Windows 11 Version 22H2 for x64-based Systems (KB5031354)
Driver Updates:
- wch.cn - Ports - 3.8.2023.2 (I think this was my troubleshooting)
Other Updates:
- Windows Intelligence Update (2)
- Windows Configuration Update (KB5030509)
- Windows Malicious Software Removal Tool x64 - v5.118 (KB890830)
I am getting desperate and would appreciate any help you can offer.
LightBurnLog.txt (1.1 MB)
Lightburn Support Data 20231017.txt (5.2 KB)
System Information Summary 20231017.txt (1.6 KB)
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Tim Martin
IXͶYy
Co-host of the AreYouJustWatching podcast
Computer Geek/Stentorian
Nos hortari ridiculam vultus