D2 random Ip ban?

Hey there, i seemed to be ip banned, im unsure, but from what it looks like , i think that is the issue. i can join all other realms asia Eu West, just not east realm on diablo 2 lod, i was checking my characters the previous day before to keep them from expiring, and then a couple days later i try to get on and it wont let me connect. Any ideas?