Hi,
We are experiencing an issue with Mikrotik equipment to Blizzard Entertainment Servers, Where connections just get dropped, we have done some testing and if we turn off connection tracking / Not NATTing on the Mikrotik and NAT on a simple Tenda or Ubiquiti Router then the connection does not drop, it seems that the connection tracking values or NAT has some kind of mismatch when it comes to Blizzard Servers, now we have tested this on stable, testing and long-term firmware, with different CPE’s as well like the Disc5 and LHG5 with the same result, the log does not show anything happening specifically, we would like to know if there is a workaround for this and if Mikrotik is aware of this, we spoke to other ISP’s in South Africa and some using mikrotik have also said that they experience these issues and when they switched to Ubiquiti it worked perfectly, we have tried using masquerade, straight src-natting from private to public and 1:1 natting with the same issue, we recently also had a issue where connection stacking caused our CCR1072 to crash and reboot every 1-3 days doing only 3Gbps on 10% CPU usage, after turning off connection tracking it stopped.
There is definitely something fishy going on, i really love using mikrotik as its very versatile with what you can do and i would like to keep using mikrotik, all im asking for is advice and if there has been reported issues on this?