BearExtender 1200, Mini and Original 10.9 Mavericks update
This page does not apply to BearExtender Turbo for Mac.
Download the update here. (Current version is 5.3 January 23, 2014)
BearExtender 1200 for Mac
BearExtender Mini for Mac
BearExtender Original for Mac
If you are unable to connect, try rebuilding your network preferences.
Instructions are here.