Prime Infrastructure issues with collection, dscp, mos, etc

We have a virtual Prime Infrastructure appliance installed.  It currently shows collection status managed with warnings for several devices, i.e. Nexus 7k's, cat 3750x. cat 3850x.  It is not all stacks though, most are collected accurately only a few are not showing up. 
All four of my Nexus 7k's are not collected accurately.
Also when I goto Detail/Voice-video dashboards,  I do not get any MOS, DSCP, voice call, IPSLA stats etc etc
Just for clarification we use Microsoft Lync for communications with Polycom phones using dscp 46, so perhaps it is not even possible but I wouod think Prime would be polling off of traffic on the port and look for DSCP values.
I am able to poll IPSLA and mos scores via PRTG.
on many of my ports in Detail Dashboards/Interface "polling enabled" shows as "no"  I am not sure why it shows up as no but there is some date being polled. 
Is there something simple I am missing?  TAC does not seem to know the product and I am unable to find a decent manual.  So I am at a loss. 
Thanks in advance!

Bump

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