The system probably determines that you 'don't need' the improved signal strength, since your signal sounds stronger to it. So it rations itself.
They are trying to reduce the RF range to generaly increase the number of connections possible in a given area by various kinds of diversity including spread spectrum, of various forms.
As far as doing surgery on 2.4 GHz and 5 GHz radios. Its not impossible and a little bit of skill at it is useful. I recently got an inexpensive nanovna2 and that had dramatically improved my RF pigtail making skills, since I can now check anything of that kind fairly easily, within limits. (now what I'm looking for are the right clips to use at the "calibration plane" to make the connection.
Be aware that this (modification of a wifi antenna) is an area where a countries domestic regulation may limit the use of external antennas on wifi equipment. However, I would suspect that the rules would mostly apply to manufacturers, to gain type acceptance, and that as long as one was not modifying output power, and instead were increasing directionality, which lets not forget, reduces the signal to non-desired directions, making communications easier for them..In short its quite possibly a more efficient use of the airwaves on a pointto point connection. At least thats what I think is the intent of the laws. Manufacturers sell two different kinds of APS, omni and directional. Suppose you have an omni ap without any means of changing the antenna. You shouldnt be forced to buy an expensive point to point high gain AP if you can easily build one yourself by connecting a gain antenna wich might let youcommunicate with a client or AP a longer distance away - with specificity (and reducing the RF spread all around everywhere)
for an individual home user attempting to get more range, they might be unlikely to care in most situations, Dont mess with anything other than that, however.
I dont know. I know that its not only impolite, its probably ilegal to spatter signal of any kind around any more than necesary. Just like you dont shout indoors.
It would be smart to check the local rules. Personally, Ive been building and using my own wifi antennas for as long as wifi has been available. Usually to attempt to improve signal within my own apartment or home and confine as much of that signal as possible to "where the laptop needs to be used" Its a lot of fun and Ive been able to extend my range for my home wifi substantially in the past, for example, from a window that overlooked a street with several cafes on it, several hundred meters away.
But I have never used any kind of amplifier. Mostly this was for fun when I lived within range of a nice cafe. Where I live now there are no cafes within range that I know of.
Just neighbors whose own wifi I would not want to interfere with.
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