Please read the documentation.

ok. where?

Here: https://wiki.mikrotik.com/wiki/Manual:IP/Fasttrack

This article doesn't have any mentions about lags when mangle activated.

Fasttrack is a short-circuit around the more advanced features of the router to speed-up the common case of "I only want a simple router with or without NAT". It is not faster because some handbrake is released, it is faster because a lot of checks made on each packet being routed are not...

Disabling fasttrack helps.Hope Mikrotik fix it soon This is not a bug and cannot be fixed. This is how fasttrack works. Please read the documentation. ok. where? And if lagging when activating fasttrack and mangle simultaneously is documented it still issue. Mikrotik can write code to automatically...

This is a fasttrack issue. Try to disable fasttrack or limit the connections that are fasttracked to those that do not require IPsec and Queue.

thanks. Have same problem with Mangle. Disabling fasttrack helps.Hope Mikrotik fix it soon

Problem solved by using this code: /ip firewall nat add chain=dstnat dst-address-type=local protocol=tcp dst-port=5000 \ action=dst-nat to-address=192.168.1.231 to-port=5000 /ip firewall nat add chain=srcnat src-address=192.168.1.0/24 \ dst-address=192.168.1.231 protocol=tcp dst-port=5000 \ out-inte...

Hello. I'm trying get access to my NAS by using mikrotik DDNS service. But connection succeed only from outside LAN. If device located inside LAN then i've got connection refused error. Tryed to use Hairpin NAT by using this commands: /ip firewall nat add chain=srcnat src-address=192.168.1.0/24 \ ds...