Hello guys!
After hours and hours of headache, trying to figure out a fix for constant disconnects (while swimming in water, fighting mobs etc.), I finally found a solution.
I have seen a lot of you guys having similar issues, although not as severe as mine.
This might sound really weird, but:
Options → Graphics → “Max Foreground FPS” and “Max Background FPS” set to 1 fps under your monitors HZ (I have 144hz, therefore mine is set to 143 FPS).
This INSTANTLY fixed my problem, for now at least, and I just wanted to share it with you guys since I see a lot of posts with no solution reportedly working.
Give it a shot and let me know how it works out for you.
Best regards,
romerz.