So when you use healing wraps after taking dmg, and you can see the cooldown buff on your left, don’t equip your weapons until the healing buff is gone. Otherwise, you will lose your connection to the server. This has happened to me several times on a private testlive server.
Also another kind of problem with them: I don’t have any buff time, only a message stating that I stopped bandaging as soon as I use the healing wrap from the hotbar. PC offical server PVE#2-F (since patch#33)