We haven't heard of any issues associated with later model Macs... please test your device on our OpenSignals software to see if the connection is stable there: http://bitalino.com/index.php/software
If you have a stable connection, the drops may be associated with the way the data stream is being handled on MaxMSP.
To interface with MaxMSP you have the OSC bridge by Mick Grierson (http://gitlab.doc.gold.ac.uk/rapid-mix/BITalino-OSC-OSX
) and the patch by Joseph Larralde & Riccardo Borghesi (https://github.com/Ircam-RnD/bitalino-max
Check also the problem is common to both methods or if it is just an issue with the Max patch and let us know the results.
The BITalino Team