how do I lower the power of 2.4GHz ?
I could see that most of the clients refers to 2.4Ghz and connects there by default instead of 5GHz
/interface wireless
set [ find default-name=wlan1 ] antennagain=0
There is no more antenna-gain in Winbox since recent FW updates. You must use CLI...Go to wireless, switch to advanced mode, set regulatory domain, your county and then try to set antenna gain from 3 dB higher.
How do you do this exactly and is it effective?CLI interface and set antenna gain higher --> make real 2.4 radio power lower...
But better is create access list for 2.4G and 5Ghz, and allow 2.4G connection only for bad RSSI (like < -70) , while allowing
5Ghz connection for good RSSI >-70).
You will need to play around which values you can use for this.
Example:How do you do this exactly and is it effective?
/interface wireless access-list
add allow-signal-out-of-range=30s comment="laptop on 5G Wifi" interface=Wifi_if_5G mac-address=XXX signal-range=-80..120 vlan-mode=no-tag
add allow-signal-out-of-range=30s comment="laptop on 2G4 Wifi" interface=Wifi_if_2G4 mac-address=XXX signal-range=-120..-70 vlan-mode=no-tag
You should really change output power only in three cases:Antenna gain should only be used for setting...antenna gain. Hence why it can't be set for most devices anymore.
Use the transmission power to set transmission power (and make sure it is set 7dBi lower than 5GHZ radio).
New Android and Windows10 use by default now the option to "randomize" the MAC address for each Wifi connection.