Hi, I've been having an issue when I can connect to my server using localhost, but he cannot connect to my server over our VPN, Remobo. I do change the port from 25565 to 25555 (I've tried setting it back to 25565, it doesn't help), but he uses 25555 as his port and as do I, and he can't connect to me at all. The same is true when he hosts a server and I try to connect to him. This only happens with Tekkit; it works with Vanilla Servers, Forge Servers, Bukkit Servers, and even MCPC Bukkit Servers, but not Tekkit itself.
EDIT: To whomever reported me - Yes, I chose to post it here, because this appears to be a tekkit related issue. I thought this was where you posted stuff like that, since I saw it before.