I'm also getting the ev-fw.com Host Error timeout. How could it be related to Tesla blocking non-Tesla access to their API, since I'm trying to access ev-fw.com directly (to add a firmware update)? Unless it is because ev-fw also uses Tesla's API but is now likely also blocked so somehow their server tipped over because of it (or has too large of a backlog of outstanding requests, and so can't handle incoming requests; e.g., a bug).