Zenoss 5.0.9_1 on Control Center - snmp works but "No Data Available"

After struggling with manual, standalone installs and auto-deploy scripts of v5, I opted to try the Control Center deployment.

I have Core 5.0.9_1 up and running nicely, and am trying to get some simple SNMP based graphs going with a Cisco CSR.

The Zenoss models correctly, gets the interface details, routing tables, system information etc but does not graph. Now, in the olden days, I would go grab a coffee then have some data after 15-20 minutes. But not this time.

ALL graphs for ALL devices say "No Data Available". All services and up and running (blue ticks in Control Center) and a manual SNMPWALK from the Zenoss Console does return some data (system MIB).

Any ideas I've done a HBASE reset () but this is a brand new install with a single SNMP router... no previous data... just not working out of the box!

Thanks, Neil.