hello

1st i buy the TL-WPA4220 KIT as you can see in the image is the black circle

2nd i bought another one but a TL-WPA4221 KIT as you can see in the image as red

device-28DB firmware 1.4.2.20-00_422014_181207_902

device-2FBE firmware 1.3.1.2141-00_422013_170515_901

device-DF85 firmware 1.3.1.2141-00_401092_166022_902

a few questions

Should i install both PA4010?

or is 1 enough?

If 1 is enough which one should i use the current one or the TL-WPA4221 KIT?

I wanna know why 1 receives 447 MB and the other receives only 40MB

The red one is always getting into problems, not receiving internet or sometimes i cant even connect to the device.

i have 3 pc in 3 deferent bedrooms

The DF85(main room next to the box)

2FBE next door bedroom(5m distance to main room)

28DB is the living room(10m distance to main room)

How would you install it?(max internet on main room)

Thx in advance for the help