I use Gsender 1.1.7 with my ESP32/Fluidnc machine no problem via serial/usb cable . As has been the case for a long while.
With the same setup I can interact with my longboard controller/laser using Gsender 1.2.4
However I tried Gsender 1.2.4 with my ESP32/Fluidnc machine in the same fashion and the software says its connected , however the “CONNECTING” label in the visualizer does not change so i’m not connected. I do not see the handshaking in the console. All my equipment is on the same network.
I noticed in the release remarks that this was a recent issue. Here are a couple of pics
I’m no computer guy, but my buddy told me com 3 is garbage and lots of things don’t like com3. If you can change that to any other port number, and try again, maybe it’ll help? I actually had a similar issue. We changed from 3 to 8 I think, and voila, no connection issues!? Worth a shot if you haven’t got it figured yet.