... sometimes with autodesk is like that... you have to try again for a couple of times..
.. or try to download the content of those codes and then install them
https://knowledge.autodesk.com/support/revit-products/troubleshooting/caas/sfdcarticles/sfdcarticles...
.. or maybe you have to allow the conection in your firewall
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REVIT EXPERT ELITE
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