Hi @supervillain,

For a little more money you can get two eap610s (one top center, other center basement ceiling) instead of the eap670.  I think this will provide a better and more uniform signal.  If you want to try the 670 and decide to swap for the 610s, I believe they use the same mounting plate, so no extra work.

  @D-C Thanks!

The 610s only have a gigabit port afaik?  I am looking to future proof as much as I can on this.  Below is the basic layout.  Red dots are cat5e drops.  Blue dot in basement is ISP hookup point and where all the cat5e terminates.

  @supervillain 

I'm no expert here, just used buil-in Controller's map to simulate the signal coverage for your plans.

Looks like 610 and 670 provide similar coverage but 670 looks better in terms of equipped network port (2.5 instead of 1Gbps).

In the simulation I've used bricked wall since there was no drywalls... In theory drywall's reduces signal by 3dB, brick wall by 4dB.

The scale for signal here is from -40dB [red] to -60dB [green]

Here's an effect for 1AP [670] mounted centrally:

And here's for two:

Both simulations are for 5GHz network. EAP610 gives similar results.

The walls are reducing the signal pretty strong, since there's a lot of those for signal to cross.

OFC the simulation is homemade, the drywalls are reducing the signal less than (used here) bricks, as well as I have skipped doors, so made is as the alls are all the way...

But if you want to use the AP on 2nd floor only and use that WiFi network on Ground Floor as well, I would go with 2 devices myself.

If you would like to install separate device for ground floor, then I believe just one device there would be enough since there is not so many walls:

As I said tho, I'm no expert as well as I've used TP-Link's tools for this simulation so it may not be accurate...

Cheers :)

  @RaRu That is helpful! thanks

The ground floor unit would be exactly where you placed it.  As for upstairs, that is a tricky one. I wonder if I could try the main floor, then do a check upstairs to see where the coverage is.  I know that the ceiling units do project upwards.  If not, I could look at wall units.

@supervillain yes, ceiling units do project up, but not as well.  The Heat Map in the contoller that @RaRu used is helpful in the X/Y plane, but not so useful for the Z axis.  The radiation patterns for the APs are included in each model's data sheet and can help with placement and orientation.

Here's the EAP670 v2 info...

  @supervillain 

Yes, as D-C said. You can even see it on the pictures he attached. The back plate of EAP's is a heat sink so it's made out of metal, therefore the WiFi signal is heavily reduced...

It's more likely that you will have useful WiFi signal on the ground floor from EAPs mounted on the 2nd floor than the other way around...

Just keep in mind, that with WiFi coverage, is not only about EAP generating the signal for devices, but also the devices (phones, PCs) have to be able to reach out back to EAPs.