OH my gosh! am not the only one! I've been tackling this problem for 7 hours now. IDK if this help but i can't log in gilgamesh with my main character Auldinne Juicie but can log into zalera with an alt character aranion senbonzakura. I've downloaded winmtr and did the tracert on my CMD and when i ping gilamesh i got no respond from hop 8 to 17... I also disable the upnp within my router just now and still got an error. The code are 90002 or 90004 sometimes it'll be 10104 or 10105 but its since on my main character located in Gilgamesh. Everything was working fine, went afk, came back, and was greeted with the infamous 90002 error code.