You have been disconnected. (BLZ51900002)[SOLVED]

[koditza]

Hi, I just got a new Router(ZTE F680) and suddenly I get the error (BLZ51900002). I did all steps to this guide https://forum.wow-freakz.com/BLZ51900002-t500105.html but no positive results. I forward all related ports(TCP: 1111-1119, 1129, 8001-8009, 8019, 8085, 8086) in the router and also in the Firewall. I do not have an antivirus. I also tried to do some solution from blizzard but nothing. I don't know what else should I try... .

Here is a screenshot from TCPView https://imgur.com/WV5dNdy .

Thanks!

[SOLVED]
Going to my router configuration:
Security -> Firewall -> Disable Anti-Hacking Protection and setting Firewall Level(IPv4) to Low

DotA 2 player. Web Developer Amateur.