Orbi RBS50Yv2 Router - How can I install the Orbi app for my system if my modem is in bridge mode?

Orbi app is not supporting of Orib Pro systems. Orbi Pro uses InSight app to connect to those systems. 

If your trying to get the RBS50Y to connect to your Orbi Pro system, not sure if the Orib app can or get pass thru data to the RBSY thru the Orbi Pro. 

For Orbi Pro support, Netgear has set up a community forum specifically for the Orbi Pro products. Most of the people who watch that forum are more likely to have experience with Orbi Pro and know how to work it better than those of us who follow this router forum. Might be more likely to find someone who has a solution if the question is posted there:
Netgear has set up a community forum specifically for the Orbi AC products. Most of the people who watch that forum are more likely to have experience with Orbi and know how to work it better than those of us who follow this router forum. Might be more likely to find someone who has a solution if the question is posted there:
https://community.netgear.com/t5/Orbi-Pro-WiFi-for-Small-Business/bd-p/en-business-pro-wifi

Please use this link to the main forum product list to review and choose where to make your posts. 
https://community.netgear.com/t5/NETGEAR-Forum/ct-p/en-netgear

Thank you.