CIFS Authentication Errors
Applies to
- ONTAP 9
- CIFS (SMB)
- Windows Active Directory (AD): Domain Controller (DC) - Windows Server 2016
Issue
- Windows clients getting error for their network drives
Internal Error
- Packet traces shows authentication failures
Session Setup Response, Error: STATUS_INTERNAL_ERROR
- EMS log
[kernel: Nblade_CifsOperationTimedOut_1:error]: params: {'remoteBladeID': '00000000-0000-0000-0000-000000000000', 'cmdRestartCnt': '0', 'vserverId': 'x', 'commandName': 'SMB2_COM_SESSION_SETUP', 'isQosEnabled': 'QoS_disabled', 'lastSpinNpError': 'SPINNP_NO_FO_ERROR', 'localIpAddress': 'x', 'lastCsmError': 'CSM_OK', 'clientIpAddress': 'x', 'vserverName': 'x', 'suspensionCnt': 'x', 'dsId': 'x'}
- SECD log
[kern_secd:info] RPC TOOK TOO LONG: RPC used x seconds (max is 23) and likely caused the client to timeout
[kern_secd:info] [SECD MASTER THREAD] SecD RPC Server: Too many outstanding Generic RPC requests: sending System Error to RPC 151:secd_rpc_auth_extended Request ID:x.
[kern_secd:info] CRIT : maxConnectionSem held for x seconds for cache ref ID x, conn type LDAP (Active Directory)
[kern_secd:info] CRIT : Mutex svcDiscoveryMutex held for x seconds