I am currently testing 2x eap660hd and 1x eap670 in my house. Look at the pictures below for the floor plan. I am considering placing 3-4 of the eap670 or eap660hd, or maybe an eap650 or eap610v2 in the bedrooms upstairs with a larger one (660 or 670) on the 1st floor. The green circles are the current locations. The blue ones are the proposed locations. The current one on the first floor points up as it is on a media cabinet at the moment.

I have the power set to low on 2.4ghz and medium on 5ghz. The 2 upstairs AP tend to grab random devices such as IoT switches and plugs on the first floor. Currently, the bottom left bedroom on the 2nd floor is not getting a usable signal. So I need to place something in that area. I do have good coverage on the 1st floor. On the top area of the 1st floor I have a proposed location, there is a 600 sq ft covered deck out that door that needs coverage.

For reference, if I place an eap660hd on auto power on the 2nd floor in the middle, I get 300-550mbps everywhere on that floor, but the signal is only good in the room directly below on the 1st floor. I have conduit running from my basement up to the attic so I can easily pull needed cabling there. It is also a heated and cooled attic, so it never gets warm or cold.

Both floors are 9' ceilings, 2x6 walls, and sheetrock, the exterior is brick. I have pine floors on both. Each floor is 3000 sq ft, so 6000 sq ft interior plus 600 sq ft deck needs coverage. The house is approximately 75' wide and 60' deep at the longest points.

On the first floor, I have some conduit to the front porch, rear deck, and garage/portico areas. Unfortunately, that doesn't allow me to reach the inside except in the laundry

room where I have an access panel just above the red line. The red line on the first floor is for triple 12" LVL beams that I can't drill through for more conduit. So that does restrict my ability to reach some areas. The kitchen is a tongue and groove ceiling that I don't want to cut open or drill any holes into.

Should I place the AP as laid out in blue, or should I place them in the lower and top left bedrooms and the far right one on the 2nd floor and then 1 on the 1st floor? If I just do the bedrooms upstairs and 1 larger one on the main floor, will an eap610 or eap650 penetrate through the floor well enough? I can turn off the 2.4 GHz radio on some of the AP if the 2.4 GHz coverage is sufficient to minimize interference.

I have been testing various devices and I have decided on the Omada line. We have approximately 28-30 IoT devices both 2.4 and 5 GHz, with 20 or so being 2.4. There are another 5-10 phones and laptops that are 5 GHz. The rest of the devices are wired. The majority of the wireless devices are on the left 2/3rds of the floor plan.

Also, how directional are these AP? It appears that one of them in the top left bedroom, depending on how it is turned picks up clients all the way to the front of the house on the 1st floor. The upstairs AP are currently laying in the ceiling of the rooms between the joists for testing.

I am open to suggestions since I think 4x eap670 or eap660hd will be overkill.