hunting4devil

I am a lvl 16 monk.whenever i click RDF(rancdom Dungeon Finder) and after getting all 5 members of team dungeon starts loading,my screen remains on loading page even if the loading is complete. After that i press alt+F4 to close the game and again when i restart the game i am directly sent to the dungeon but this time it loads normally. My point every time i use RDF without exiting the the game i am unable to enter the dungeon.:sad::sad::sad: