The MechWarrior Online open beta has been delayed. In an official release that went wide, developer Piranha stated:
We have decided to push Open Beta back. We agree that the game’s current state of stability is not allowing us to get the latest experience across to new and veteran players alike. This is a short push back on the date and will depend on the stability and playability of the build.
We’ll keep you posted on when they announce a new date.