Nighthawk AX3000 Router connecting intermittently

[LH7]

I have a new AX3000 router and all the lights are green, but app says it's offline. Wifi seems to go on and offline intermittently (more off than on). 

Answering questions from this post ( @michaelkenward , if you can help) -

• apple app (and macbook)
• firmware version is v1.0.3.62_1.0.1
• modem is new motorola (Model MB7621)

[plemans]

When its dropping do all devices drop? just a few? Do wired devices drop?

When it (wifi) drops, does it say "connected, no internet" on devices or is it disconnecting from the network entirely? 

When its offline, does the internet led still show green? 

How frequently is it happening? A few times an hour? Couple times a day? 

Reason why i ask would be to have your hardwire a device into the modem and use it for a period to ensure its not the modem's connection dropping.