2 make controllers with MAX

I recently ran into trouble when connecting 2 make controllers via network. Connecting just one goes fine, the board is shown in McHelper and can be given commands without problems. When the second board gets plugged in, there is no response from neither board anymore. Checked network settings, but no help.

Anyone using two controllers through a network connection?

And, should this problem be solved: how to "talk" to one of the boards separately (when both are connected) through OSC? The normal commands are something like "/motor/1/speed 512" ... so how to choose between board 1 or 2?

thanks!

The MAC address is generated using two bytes of the serial number.  I don't know whether the serial number is set to something unique out of the box, but it is settable via System_SetSerialNumber.  It also might be settable via mchelper, but I haven't used that, so I don't know.  In a pinch (ie: if it isn't), you could write a small app to just make the System_SetSerialNumber call.

If two devices on a network segment have the same MAC address, I would expect problems such as this.

/And, should this problem be solved: how to "talk" to one of the boards separately (when both are connected) /through OSC? The normal commands are something like "/motor/1/speed 512" ... so how to choose between /board 1 or 2?

With the individually set IP adresses of the boards , you should be able to send different commands to any boards via the sendOSC object.

You can connect as many as you like over Ethernet.  You just need to have enough available spots on your router.  Make sure each board has a different serial number (they should by default) and then you can check their addresses in mchelper.  Use the corresponding addresses with the udpsend object to get your messages to the desired board.