Hello ,

About a week ago, I purchased a Mikrotik model : RBSXTsq5HPnD , After the configuration a device access point problem occurred,

The problem is as follows : When testing the speed by Bandwidth Test on winbox from AP-1 to AP-5 , it gives 200 Mbps ,

But when run bandwidth Test from AP-1 to AP-6, 7 and 8, it gives a low speed 30~55 Mbps and a Lost packets ,

Note: The Bandwidth test between AP-6,7,8 and AP-5 gives a speed of 200 Mbps .

Attached is a picture showing my network topography , and All cat6 Cable connections were test by testing devices .

Mikrotik version 6.47.9 long term

Please help me solve this problem , I have been working for 5 days and I have not found a solution, I feel nervous because of the loss of the project .

I don't understand HOW you are getting 200Mbps speeds via 100Mbps Switch/AP?

Anyways ...
Maybe the Switches are BAD.
Did you try replacing one of them and doing some Speed-Test ?

interference in wireless between ap-3 ->ap4 and ap-5->6,7,8
for example,
set 5180 on ap-3->ap-4
and 5700 on ap-5->6,7,8

also, move away ap-4 from ap-5, make sure they are not nearby each other.

I don't understand HOW you are getting 200Mbps speeds via 100Mbps Switch/AP?

Anyways ...
Maybe the Switches are BAD.
Did you try replacing one of them and doing some Speed-Test ?

The speed 200 mbps, is the speed of data transfer between (( wireless )) devices only , not by cable & switch ! , wireless devices support up to 300 mbps only wireless to wireless

interference in wireless between ap-3 ->ap4 and ap-5->6,7,8
for example,
set 5180 on ap-3->ap-4
and 5700 on ap-5->6,7,8

also, move away ap-4 from ap-5, make sure they are not nearby each other.

I will try it