Question

StudioLive AI 1642 Mixer

Ver. SL 1.0.6452

Answer 1

A few months ago we put out a the UC Surface 1.5 Milestone which is a major release which adds new functionality and fixes many known issues. This release adds RM Mixer cascading support, updated StageBox modes, and much more, all explained in more detail in the "UC Surface 1.5 Addendum" document, available for download from the Product page Downloads section for all AI family mixer products, or from your MyPreSonus account. 

Answer 2

This might be helpful to read. Also have a look at "Related questions" (see right side under "Categories").

http://answers.presonus.com/1142/studiolive-ai-wireless-network-setup-and-troubleshooting?show=1142#q1142