In repetier firmware M32 enables/disables autoleveling.
9600 baud is not correct I think. 115200 or 250000 are the typical baud rates. Try these in host. If you have repetier firmware baud rate is the one set on first upload. Only if you change EEPROM_MODE it will set a new baud rate for connection.
Check log for any messages. As soon as you have right baud rate after connection you should see some output from firmware like name. If not you have a connection but due to wrong baud rate do not understand communication whcih is also why you have x commands waiting.
