Similar issue here. Been happening for over a week now. Game is unplayable as a result :(
Yellow chain into red chain and losing connection to server on every single server I connect to. Sometimes I can play for an hour before it happens. Sometimes it happens immediately upon joining a server when I haven't even moved yet. Sometimes I try to play with friends and disconnect 10 times in quick succession in the middle of a firefight while we're under siege in a building.
My internet connection is fine. No packet loss to testing sites. This is not a firewall issue. I don't have any similar problem in any other online game. I wasn't having this problem in DayZ until about a week and a bit ago.
I've noticed that logging in while near and inside buildings seems to make it worse (happen more frequently), but it happens out in the wild anyway when I'm doing things like inventory management. There's really no escape from it.
Please prioritize fixing this issue.
Also, worth a note. I've tried reinstalling the game and it has made no difference.