1

Each time I attempt to upload to the MKR WiFi 1010 board the COM-port gets disconnected, usually at one of the following points:

  1. Either it disconnects just after compiling/verifying. In this case the LED_BUILTIN pulsates slowly, and the USB-cable needs to be reconnected in order to try again. The next attempt usually results in 2..

  2. Or, it disconnects after a successful upload. The next attempt to upload will always result in 1. occurring. When this happens the COM-port is still visible in Windows Device Manager but it can't be found by a Serial Monitor.

Any ideas what could be causing this or what could be done to have it stay connected? With an UNO this doesn't happen.

ivvi
  • 141
  • 4

1 Answers1

1

This was due to using a virtual machine (VMware) which apparently doesn't handle the MKR board COM-port so well. Moving the development environment to the host solved the problem. It still disconnects the COM-port after upload but then consistently reconnects to the same COM-port and that's good enough.

ivvi
  • 141
  • 4