Well, before I used to host servers with no problem. All of my ports were open before and everything was working well. Then all of a sudden, when I go to host another server it's telling me my ports are blocked. I used a port checker tool aswell and it was telling me that my ports were blocked. So I tried to re-open my ports using this tutorial. Port Forwarding Tibia on the Linksys DD-WRTv24-SP2. However it still was saying that my ports are blocked. My father tried them himself aswell and he works with computers for a living, but still no success. We assumed that it was our internet company manually blocking the ports themselves and not allowing us to open them, but when we called them they said they wasn't doing anything. So what can be the problem? Could it be the internet company lying to us, or them being retarded. Or maybe it's the router?