Region: EU
Browser: Mozilla Firefox
Critical plugins: * Adblock Plus
OS: Windows
Connection type: * Router
Bug type: Lobby page
Lobby ID: 1067678
Date & Time: --
I returned to my desk and saw it count down and I had 5 more seconds to ready up, and it gave the slot to someone else.
If this isn't a bug, reduce the timer accordingly (no matter what may cause a change to the timer, it should never say 5 more seconds when it means 0 more seconds).