Virtualbox network keeps switching to Public network, causing Media Center Extender to stop working. I switch it back to a Private network, but after a while it seems to switch back to public, which seems to prevent my XBox Media Center Extender from networking to my computer running Vista Media Center. Disabling the virtualbox network adapter doesn't solve the problem. Uninstalling Virtualbox however does solve the problem.

There is an option when installing VirtualBox of not installing the host only network and only using the bridged network. Doing so seems to have solved my problem while still being able to have VirtualBox installed.