Hydra disconnect issue

Running Hydra today with my two friends for our relic weapons we came across a weird possible bug/glitch. We all are in the same room playing on different computers but its all the same connection.

During the fight my friend was hit by the ability, "Fear Itself." After he ran around for about a second or two he was disconnected from the server. He was quickly able to log back in while the encounter was in progress. Later in the fight I was hit by, "Fear Itself," and experienced the same problem. If more that one person was getting disconnected I would say my ISP/router was to blame, but since it was only the player effected by, "Fear itself" that had this issue I figured it would be worth mentioning to see if anyone else has shared this experience.