Hello,
When the user use speed test application to determain speed, the mikrotik disconnect this user!!
Can you help me to fix that?
Thanks…
Where are you guys?? 
You can choke the line or cpu so the user connected via tcp can easily loose the connection. Check it.
Thank you for reply jarda, my MT is not in live network this is only a test so i don’t tink it’s cpu problem, in the hotspot when i test the MT with switch only every thing seems okay but when i test the MT with PTP “cambium devices” and use some application such as “speed test” the user logout!! i don’t know what the reason!!!
That could easily be the case I mentioned previously. Just see what cpu does during your tests (tools / profile) …
I have checked the cpu usage during the test, all terms=0 except the idle term = 99.9 !!
I have used VPN connection during the test yesterday every thing seems okay but without VPN the issue is back!!