Hi!
I have a big problem 
I use MikroTik RB1200, and:
In some conditions CPU usage of RB is 100%.
I’ve found its reason. It is here:
When internet user is login and he/she start IDM, he can download normally, BUT: when he log off without stopping IDM(or his time or quota is exceeded),IDM send and send and send its request. So RB wants to send reply to IDM. This cycle repeat and repeat until user stops IDM or user can access to internet. my question: How can I prevent this case of request/reply?
I WANT TO MAKE IDM INACTIVE, WHEN USER DON’T HAVE ACCESS TO INTERNET.
please help me.
best regards!
Do you have a hotspot running? You can try and limit the number of connections a guest is allowed to have pre-auth on the router so it limits how much it has to process from a single person.
/ip firewall filter
add action=drop chain=pre-hs-input connection-limit=10,32 disabled=no dst-port=64872-64875 protocol=tcp
This will limit it down to 10 open connections per address on the hotspot. Increase or decrease the number as desired for your own testing.
Thank you “Feklar”.
I set config as you said. But I had to set connection limit to 3 instead of 10. However it works correctly.
Good Luck!