Syncing Renoise With Protools 8

Today I installed the demo of renoise on one MAC in the studio at uni, tried to sync it up with the main MAC in the studio (running protools 8) I connected them with midi through the network, setting the protools machine as the master, and when I pressed play on the protools machine, the play icon on renoise on the renoise machine started rapidly flashing on and off, and the sample on line 1 just kept playing over and over, even after i stopped protools.

Any tips?