That makers a lot of sense actually since the easiest way to combat a DDoS attack is to only allow so many connection attempts from an address in a given amount of time before either banning the address or temp banning it. If the our external world servers loose sync and keep trying to reconnect, the LS may be seeing that as a DDoS attack and causing issues. Even more so if as you hypothisized about having multiple LS's syncing to one world server and if one goes out of sync it resend the world server login request back to all LS's in it's list.
|