every few weeks I get an “ssl_error_inappropriate_fallback_alert” when I try to connect to a Wikipedia. If I reload, the error is gone. So my guess is that one of the servers is not in sync with the others, but it might be something else.
Unfortunately I’m not able to debug it, because I have no further information than the error-page.
Maybe someone else encounters something similar, then he/she can add to this bug.