Sadly, There's no "Enable port forwarding". I can enable/disable each forwarded port. All of them are enabled. But I have there some "DMZ Host". I don't know what it is (I attached a screenshot), but another idea came to my mind. Can be relayed tunnel cause by router's firewall? I can't turn it off anywhere, but there is this DMZ Host.
Also, I tried static routing. I don't know, maybe I've set some weird non-working crap but what do you think? Screenshot