IP Address blocked for 30 mins

[Grim]

So I just came back to my college home in Cincinnati, I log on to my tibia account fine, logout, go back to get on 15 mins later and it says my ip is blocked for 30 mins, why did it do this? Could it be since I came from home with a different IP and now im back at a different house in Cincinnati with a new ip?

[User Not Found]

System check of tibia, register ip in accounts, probably a scam ip address. I got this sometimes in proxy too!

[SuNe]

Someone who shares your public ip adress has enter wrong password alot of times.
There is 2 stages of this,

First the account gets disables for 5 min, 2nd it locks the IP adress for 30 min.