An unknown error occurred (0x80092013)

http://support.apple.com/kb/TS3221

:\>err 0x80092013

# for hex 0x80092013 / decimal -2146885613 :

CRYPT_E_REVOCATION_OFFLINE winerror.h

# The revocation function was unable to check revocation

# because the revocation server was offline.

# 1 matches found for "0x80092013"

The error means that the SSL certificate that Apple is using or one of the certificates in its signing chain has a CDP (Certificate Revocation List Distribution Point) that is not accessable. This could be due to network connectivity like bad proxy settings, name resolution, or the end point is really offline.

No big mystery.