I check devices connected and shows total of 3, but I only added 2. The third one is unknown. Does the Orbi wall Plug Satellite show up as the third connection?
Re: Ac2200 setup
What FW is currently loaded?
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What is the model# of the walll plug?
If you updated to recent FW v.210, try enabling Daisy Chain. Some have mentioned that this seems to be working in reverse order, enabling means disabled actually. Hoping NG support can have a look at this. So try this out as well.
Additional NG HW: C7800/CM1100/CM1200CM2000, Orbi CBK40, CBR750, RBK50(v22), SXR30(v110), R7000(v34), R7800(v84), R7960P(v82), EX7500/EX7700, XR450(v120) and WNHDE111