Step 1 – Ensure Simple Client and Simple Server work.
You can download them here. You can also test them with recorder.
Step 2 – Did you read the readme with Vizzable, are you required to install the Syphon plugin for Max 6? If so, did you do it?
Step 3 – How do you know it works up to Syphon out but no further? Can you please document your steps and check out: https://www.mikeash.com/getting_answers.html