error EU-FA-3 normally can be solved by a complete restart of the Epic Launcher, e.g. by rebooting the PC, or by killing EpicGamesLauncher in the task manager
For me, this had nothin to do with connection problems. It was my windows user lacking read/write permission on the folder C:\Program Files (x86)\Epic Games\Launcher\Portal\Binaries.
Hope it helps


