It was much more stable for me when I was installing it through rubygems and managing our middleware's dependencies with bundler directly. We've switched to the

It was much more stable for me when I was installing it through rubygems and managing our middleware's dependencies with bundler directly. We've switched to the embedded ruby and it's a struggle but we deal with it since it's probably MUCH less work to support now that it's standardized across all vagrant installs.