ISP blocking multiplayer game ports (Minecraft)

[mlchael999]

I recently moved and have been unable to play Minecraft multiplayer since doing so. The client opens fine, and I can ping servers from my command prompt without issue, however I cannot connect to them through the client.

I am also unable to connect to servers when I connect directly with an ethernet cable, which leads me to believe it is an issue with my ISP. I live in an apartment building and use a router that I plug directly into the wall with an ethernet cable.

The error I receive is:

java.net.ConnectException: Connection timed out: no further information:

I've tried:
Opening port 25565 through my router and my firewall
Enabling incoming connections from Minecraft and Java through my firewall
Uninstalling and reinstalling Minecraft completely
Resetting my router's settings to factory and port forwarding again

I have a Dell Inspiron laptop, and I am running Windows 8. To confirm that this is not an issue with my computer specifically, I also tried these things on my roommate's computer to no avail.

Any suggestions are much appreciated.

 

[bill001g]

I would plug a pc directly into the wall instead of the router to test. You want to see what type of address the pc is assigned. You want to see if it is a private ip (like 192.168.x.x or 10.x.x.x etc). or if it is a actually routable internet IP.

I suspect you have a private ip which means the apartment has a router doing NAT. Since you can not port forward in their router in effect all incoming ports are blocked. There really is not good solution to this. You could look at one of the VPN services that provide you with a actual routable ip that is not shared with other users.

Now if you get actual routable IP then you need to cal the apartment IT guys and ask if they block things. In general only greatly abused ports like mail services and web servers are commonly blocked.