With the recent implementation in R2 to have Analytics VR at Controller to have ADC Enabled by default, to have all the new Branches getting deployed with Analytics enabled will point to the ADC's VIP IP rather than Analytics South-bound Interface  / Collector IP as like earlier versions.

Though the config happens part of Workflow and we dont have to manually add or configure anything, however we there is invalid IP in the VIP or the Collector IP which ADC VIP point back to Analytics then the trick of seeing Branches having Lef connection as "Established" but in real it has no pointer to any collector at Analytics.

Below Screen show Branch is all good towards Analytics Log Collector - Previous to R2 [ All Good ]

Below Screen show Branch is all good towards Analytics Log Collector - R2 Controller on wards point to VIP not Directly to Analytics Collector.

This confirm the Branch to Controller and need not be upto Analytics in R2 onwards.

We need to confirm from below ADC in Provider Org if Controller is indeed pointing to the right Lef IP behind itself without which the CPE/Tenant Data will not be populated or created in Analytics.