Can Any Help Me To Fix this problem

And what is the problem? Can you be more specific, please?
Isn’t he loosing the connection on that link? He should check many other threads with unstable wifi connection or link lost topics and get the inspiration. Check everything and then eventually come back and tell us what he did and what he got. Otherwise it is like a a shouting in the darkness.
its like collision when some clients connect to the sector its start drop the connection is their any filters or firewall to protct my network