A few days ago I took out my Edge Router 12P and installed mikrotik ccr-1036 thinking that the performance of the network was going to improve and in fact it was but I have several problems with gamers that previously did not have especially those who play Call Of Duty and that is that sporadically they get the error "Connection Interrupted" this did not happen with the Edge Router. I already changed TCP Established Timeout to 30 Min, 60 Min, 4 Hours, 1 Day, 3 Days, and none of this solves the problem. Any solution ?
You should give more details on the problem - what RouterOS version, what firmware version, are the customers behind NAT or do they have public IPs, how much traffic, etc. It is really hard to give advice with such minimal information.
Do not change the TCP timeouts as they are unlikely to be the cause of this issue and it may make the problem worse by overloading the router by increasing timeouts unnecessarily. The longer the timeouts are, the more connections the router has to track, which means an increased load on the router.