Using Router Configured as Access Point Cannot see Satellites in web browser application

Hello FURRYe38,

well due to a small, very small, family emergency I did not run all the tests and did all the set-up I wanted last night but I did progress nonetheless. 

I powered down the router and satellites. Then I plugged the router in the managed switch via the router's ethernet port. Powered it back on and performed a factory reset with an approved paper clip :-)  Once the reset was over, I plugged my laptop in the switch port behind the router and went to orbilogin.com. First surprise: the router ran automatically a set-up program and prompted me with various set-up questions that were pertinent. It even discovered the other router in the network. It told me something about configuring Orbi's router as a second router in the network which I declined. Then asked me about passwords and other general set-up questions. I then went to the advanced tab and checked the AP mode. I then logged out, re-booted and voilà the router, now in AP mode, came up, the wireless networks, guest and main, both were on and stayed on. No problems to report even as of this morning. 

I will perform a factory reset of the 2 satellites, one at the time and add them to the network one at the time. This will have to wait until tonight.

However, I do have one question to ask and it has to do with the ethernet backhaul. If you go to this article, https://kb.netgear.com/000051205/What-is-Ethernet-backhaul-and-how-do-I-set-it-up-on-my-Orbi-WiFi-System it lists a few ways to wire the backhaul. I am particularly interested in the last picture because this is pretty much the set-up I was thinking I'd use. You'll notice that in all the images the ethernet port of the router is not used. Is this an oversight or is how it should be? In my particular set-up the router is in AP mode and this is where I get confused. Should I plug the router to the managed switch as it is now that is via its ethernet port and then simply plug the satellites in the managed switch or should I leave the router's ethernet port unused and plug it into the managed switch via one of its ports as we do for the satellites? Or maybe the router should be plugged into the managed swich via both its ethernet port and one of its other ports? I know that sounds silly but I am not sure of anything anymore :-)

I will get back to you with a manfacturer and model number for my cable modem.

One last thing should I change the IGMP setting of the switches before I set-up the satellites? I would like to try it as is first unless you think that I should disable the IGMP feature first. I am thinking that it should work as is but I am interested in your thoughts on that.

Thanks a bunch

Simon