How to configure the lowest transmit power possible on AIR-CAP3502

[muki30001]

I have AIR-CAP3502 Which works in an automous configuration

I want to know how I reduce the transmission power to a minimum

Is the rest of the settings that appear on the screen here are good ? (Attached is a screenshot)

what is

"Internal Antenna Configuration"

"Aironet Extensions"

"World Mode Multi-Domain Operation"

"11r Configuration"

I have a 4 AP at home connected to a simple router (home devices edimax, level1, dlink)
All of them have the same network name and password

When I move from one room to another a device connects to the AP with that high power

Now I changed AP in one of the rooms
And now for some reason the cell phone or laptop prefer to connect to Cisco's AP which is in another room (because of this I want to lower its power)

[patoberli]

You already configured the lowest possible power (Transmitter Power).
But you shouldn't put all Data Rates on "Require", set them to Best Throughput.
Also use only channels 1, 6 and 11, deselect all other channels!
Then I suggest you also configure the correct Country Code and select Indoor (assuming it's indoor).

[muki30001]

When I want to choose my country name in the category you said
Nothing appears there

About frequencies
Is this marking you meant as in the picture

[muki30001]

A second picture

Is there another place in the Access Point graphical interface?
Where you can change parameters of broadcast (power)

[patoberli]

I actually haven't used this web interface is the last ~10 years so I don't remember :)

You can configure everything on the CLI, for this connect via Console or SSH or Telnet to the AP.

The channels are still wrong though. Just mark 1, 6 and 11, while holding the control key on the keyboard. Just those three channels should remain green.

The country selection doesn't matter much, it's not required for normal operation.

[muki30001]

The channels I selected appear in the second picture
I meant this picture

I do not know how to use CLI
That's why I use the graphical interface


Why not use all channels ?

All these settings should also be done to 5 GHz?

[patoberli]

The problem is, overlapping channels on 2.4 GHz. Only 1, 6 and 11 are not overlapping worldwide. Also the Bluetooth makers decided to comply only with those three channels.
See here for some details: https://en.wikipedia.org/wiki/List_of_WLAN_channels

That limitation does not exist on 5 GHz, there you can enable all channels that are allowed in your country.

Have a look here for some information on how to use the CLI: https://community.cisco.com/t5/wireless-mobility-documents/multiple-ssid-with-multiple-vlans-configuration-example-on-cisco/ta-p/3118056

Also important, only use WPA2-AES as security, never use WEP or WPA with TKIP.

[muki30001]

i cant save this

i get an error (See attached picture)

As I wrote before, it is not possible to choose a country code because there is nothing there

Could this interface have advanced options that you do not see?

[patoberli]

Disable World Mode, then you shouldn't need to select a country. 

[muki30001]

I succeeded
I did what you wrote

Why is there no code for the country?
What does it give?

what is

"Internal Antenna Configuration"

[Scott Fella]

Have you looked at the configuration guide as that would help. The antenna gain is for management tools and has no real affect on the transmitter.

Just set the power level low, set your desired channel and disable the lower data rates and that will control how far your devices will actually associate to the AP.

[ammahend]

hope this helps

[muki30001]

In the first square you marked

when i want to save i get an error

Reassociation Time' must be between 20 and 1200

what is Reassociation Time ?
and what number i need to put over there ?

I did not understand the part on the antenna

[muki30001]

what is Reassociation Time ?
and what number i need to put over there ?