Hello,
Sorry to read about your issue - it is not normal at all that your BIMcloud Server is frequently disappearing.
Instead of reinstall, I suggest this article:
https://helpcenter.graphisoft.com/knowledgebase/86871/
Which BIMcloud version do you use? When the Server disappears, is it only in Archicad or you see the same on the Manager interface and within the tray icon?
Noémi
Noémi Balogh
Community Expert, Admin