Just installed Orbi AX: problems with wired and wireless speeds

Not a great out-of-the-box experience, eh?  Sorry to hear that.

For no. 1, below, I originally misinterpreted your problem.  You are saying that the Orbi app won't display connected devices.  Have you gone into the Orbi web interface to see if you can view connect devices there?  If you can see them there, then I would assume that there's an app problem and would delete and reinstall the app.  Otherwise, continue as below.

For problem no. 1, have you tried a factory reset of the router?  That could clear up a problem like what you are seeing.  If that doesn't do it, I'd download whatever firmware is available from Netgear and reinstall it to see if that corrects the issue.  If none of these items fixes the problem, then I would assume that you have defective hardware.

For no. 2, is the home office connected to the Orbi router or to the satellite?  If it's connected to the satellite, you could try to find a better location for the satellite to try to get a faster connection.  If the home office is connected directly to the router, I'm not sure what, if any, options there are.  You could try a different port on the Orbi just to be sure, but they should all work the same.  Just so you're aware, a few others have also reported slow hard wired connections, so it would probably be a good idea to contact Netgear about this issue.

For no. 3, your WiFi connection speeds do seem slow, especially if you are very near the router. Unfortunately, I don't have any recommendations for this other than to contact Netgear.