Member object is empty

[#1]

I know I'm missing something.

I'm trying to get node_info from grid members via WAPI, but I'm stuck with an empty list of members.  My credentials for the API are valid, and I can get various top-level info like grid, and even "member:dns", but calling https://grid_master/wapi/v2.11.2/member just keeps giving me an empty set.  What could I be missing?

[#2]

Try this

https://grid_master/wapi/v2.7/member

If that fails are you an admin, or have some restrictions?