C9 Port Forwarding

[elfuria]

well i was playing at my house with my family members and we could log on through my internet. but when my cousin is at his house he gets a c9 error trying to connect. my connection speed is 35mb/s up/down.. im also only using BR files (100)

[JuliaRocks]

Maybe you should add 127.0.0.1 or the ip from ipconfig(start->run->cmd->ipconfig)

[elfuria]

im pretty sure you can't use 127.0.0.1

[elfuria]

BUMPS!

[Zodiao]

Just forward this ports at ur Router and allow it through firewall :

15779,15881,15884

[elfuria]

ZOMG I FORGOT ABOUT FIREWALL! ill try again tomorrow :O

Bump fire wall didn't work :O

[blapanda]

(I know this is old, but still no answers, so I will post my solution, so everybody which follows will see the answer! I hate that on forums, if people create a thread and no ******* jerk cares about it, which has solved this issue already jet)

You guys should get in, in some internet protocol usage.

It is mostly not necessary to set the firewall, not always.
The most important part though is port forwarding your ports (15778 to 15779, 15881, 15884) on your ROUTER!
TCP and UDP, well that should be clear.
(On fritz.box:

"From Port XXXXX to Port XXXXX"
Should be "From Port 15881 to Port (empty)"
and the last line about ports the same "To Port 15881"

The same with 15778 to 15779, 15881, 15884)