Heres how to do it, and fix your connection issues.
Once youve trigger the update, the problems are mostly gone.
Next, open up the machine Upgrade Utility that you downloaded, which should detect your machine.
If it doesnt, you may have to install VZAccess Manager first.
Its a fairly straight-forward process, just keep clicking next and such.
Itll take quite a while, but itll finally finish.
Thats all there is to it.
Your rig should be working much better now.