Reocurring connection errors in combat modes (PvE)

[Graf von Monte Cristo]

Hello,

every time i enter the combat mode in PvE i receive the message "connection lost- you will be disconnect from server" and i have to re-enter the game. During the time my opponent is obviously not freezed so i receive damage and have not the possibilty to defend myself or attack the enemy. 

Has someone a solution for this? I also reported several in game bugs for this topic but haven´t not received an answer, yet.

Thanks in advance