If nothing else works, I would save the file, reset the board to default, upload the file again via network and see if that fixes the issue.
But before you do the full reset, try to power the controller down by unplugging both the transformer and the battery. You may have a serial lockout if you made too many attempts to connect
But before you do the full reset, try to power the controller down by unplugging both the transformer and the battery. You may have a serial lockout if you made too many attempts to connect