Dcs every time during choosing create or select chars on the account

[za5adlo 0]

Hello, i dunno wht i can help my friend who r getting dcs every time she try to choose or create new character on her account. We tried to delete WDB n WTF folders, changed realmlist file. She was playing the PVP realm about week ago n everything was ok. But now she cant login to server - dc after character's list. If someone knows how she can fix tht problem we will be appreciate bcs of this.