I have been experiencing a ridiculous number of disconnections over months doing various boss runs. While I have confidence that the server's general instability due to an increased number of players during a pandemic situation can affect the game, Weapon Aura is something I can confidently call the main culprit of disconnection.
Recently I have shared this video, and in the given timestamp, I disconnect the moment Weapon Aura activates.
Whenever the wave procs from Weapon Aura, disconnection may happen, and this is more likely to happen in unstable channels and during the 6 man party where the game takes a lot of sudden inputs during the burst. I was going to further investigate but I felt the need to publicly say this as I heard from a few other warrior class players that the skill causes disconnection quite often.
While I do not have any recorded specifics of the situation, I have been disconnecting from boss runs for months, inconveniencing a countless number of people, and entirely avoiding the usage of Weapon Aura significantly reduced the number of times I disconnect and improved the game's stability over the boss run. I respectfully request an investigation on this skill as a whole.