How high is the resolution you are attempting to play the game at? According to some old threads on the daybreak forums.
Try going into your eqclient.ini or log into the game and manually change it to 800x600, zone and see if it crashes you. If it does not then work your way up to 1900 or whatever resolution you want until you see it dump you out of the game. This may not be it but I would try it.
https://forums.daybreakgames.com/eq/...t-be-read.451/