Cifs client clock skew, Cifs client disconnection on file read, Cifs client general disconnection – Dell PowerVault NX3600 User Manual
Page 72: Cifs client login failure

Workaround
Check the current ACL setting in the Windows client.
Redefine the ACLs for the files by using a Windows client
the same way you initially defined it. Verify that you set the
ACL's as the owner of the files, directories, and shares. In
case you cannot redefine your ACLs since you currently
do not have permissions, perform the following steps:
1. Restore the files from snapshots or backup.
2. In the case you have migrated the data from
different location using RoboCopy application, there
is a good chance you can restore ACLs by copying
only ACLs metadata, instead of re-copying the whole
data.
3. In case all file system ACLs' are corrupted you can
restore all data from the NAS replication partner.
CIFS Client Clock Skew
Description
CIFS client clock skew.
Cause
The client clock must be within 5 minutes range from the
Kerberos server (that is Active Directory) clock.
Workaround
Configure the client to clock-synch with the Active
Directory (as an NTP server) to avoid clock skews errors.
CIFS Client Disconnection On File Read
Description
CIFS client disconnection on file read.
Cause
Extreme CIFS workload during controller failover.
Workaround
Client needs to reconnect and open the file again.
CIFS Client General Disconnection
Description
CIFS client disconnection.
Cause
In case the system identified a general issue with the CIFS
service, it automatically recovers but the failure causes all
users to be disconnected and the above event to be
triggered.
Workaround
If this issue repeats frequently, contact Dell.
CIFS Client Login Failure
Description
CIFS client login failure.
Cause
User supplied wrong password upon connection.
Workaround
Interactive users can retry with correct password.
Applications and servers might need special attention as
the user/password, which is usually set in a script or
configuration file, has probably expired.
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