The Authentication Services vasd daemon goes into disconnected mode and then will not reconnecct unless the daemon is restarted. The following message is seen in the syslog messages:
parent_loop_body: Network state going down due to unable to establich creds, error <VAS_ERR_CRED_NEEDED: Encountered VAS_ID_FLAG_KEEP_COPY_OF_CRED that does not have copy of credentials
CAUSE1: Ports blocked
CAUSE2: This is due to a code change in Windows 2008 domain controllers around replication of computer account passwords changes.
Product Defect 319479 which has be seen 126.96.36.199 and 188.8.131.52 versions.