11.10 update manager upgrade to 12.04 fails

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http://askubuntu.com – Currently using 11.10 on a new dell vostro 2420 laptop and wanted to upgrade to 12.04.01lte. Using the update manager and clicking the upgrade option first came up with a 'failure to authenticate' message and after a restart of the computer I click the upgrade and it will download 2 files then the popup closes and no further prompts/screens come up. Same thing with doing alt+f2 then do-release-update, it just sits after pushing enter. Is there some issue with my laptop that will prevent an upgrade? Or should I just wait and try the upgrade again another day? (HowTos)