@Sunshine i know, my problem is that the router automatically assigns only 2.4ghz, it never assigned 5ghz, i know i cannot set it manually, therefore i want to fix this issue

EDIT: and manually connecting to 5ghz is not a fix because the feature still dosnt work, my family dosnt know much about wifi and they will probably dont even know what is 5ghz, or they connect to 5ghz, go somewhere far, like to the garden, and get mad that they dosnt have wifi, because they dosnt know they need to connect to 2.4 for far distance, thets why i need it to be automatical

  @Sunshine who tf accepted this as a solution, read the post down below, i know i cannot change this manually with it on, i want THE DEVICE to change that, and IT DOSN'T DO THAT. that is my point, please look into this once again

Hi  @Mariuszko10,

For your issue, it is recommended that you can change transmit power to 'Low'

Log in Web interface-->Go to Advanced-->Wireless settings-->Transmit power