Intermittent Kerberos failures

[Richard Sharpe]

Hi folks,

Someone I know who is running Samba 3.5.x is getting these errors
intermittently (every 15 days):

[2015/02/26 20:47:52.913140, 3]
libads/kerberos_verify.c:391(ads_secrets_verify_ticket)
ads_secrets_verify_ticket: enc type [23] failed to decrypt with error
Decrypt integrity check failed
[2015/02/26 20:47:52.913452, 10]
libads/kerberos_verify.c:391(ads_secrets_verify_ticket)
ads_secrets_verify_ticket: enc type [1] failed to decrypt with error
Bad encryption type

What might be causing this?

They have checked to ensure that there are no rogue SPNs lurking around ...

Unfortunately, this site uses LikeWise Auth as well.

-- 
Regards,
Richard Sharpe
(何以解憂？唯有杜康。--曹操)