QUOTE (redisforever @ Oct 2 2009, 10:04 PM)

I made an account at my school. My friend logged onto his on a different computer. We can now not trade. Why not.
I know that we can't if we use the same computer, but they were different computers.
Often public computers are on the same network and connect to the internet from the same IP address. I assume that was the case here. You're recommended to only login from a private computer with a unique IP address to prevent this from happening in the future.
See FAQ #2:
QUOTE (Sword of Estel @ Apr 28 2007, 08:48 PM)

2.) My family/friend wants to play but we are on the same network. What do I do?
Only one nation is allowed per IP as of 03/13/07. Period.
Question answered and thread locked.