ZyXEL Communications NAS540, User Manual

Page: 344 / 372

Chapter 28 Troubleshooting
Cloud Storage User’s Guide
344
• Check that Client for Microsoft Networks is in the list of components and has its check box
selected.
28.6 Users Cannot Access the NAS
A local user cannot access a share
• Check that the NAS is turned on and connected to the network. The local user should try to ping
the NAS or use the NAS Starter Utility to discover it.
• The local user should check that he entered his login name and password correctly.
• Check if the share exists and has the correct access settings for this user.
• Check the Access Control List (ACL) of read/write permissions associated with specific files and/
or folders. Account names added to the list are linked to the files and folders that they are
allowed to access, along with what kinds of actions they are allowed to perform with those files
and folders (delete, move, rename, and so on).
• The user’s computer may already be connected to another of the NAS’s shares using a different
user name and/or password. This can happen without the user realizing it if the user’s computer
automatically connects to a share at logon. Right-click any other connected shares and click
Disconnect . Then re-attempt to connect to the desired share.
• Check if the share has an ANONYMOUS or EVERYONE access right. If the user is already logged
into a share using her username and password, she will NOT be able to access a share that has
ANONYMOUS FTP only access rights (as these require ‘no login’). In this case she should log out
and try to access the share again without logging in. See
Section 17.4 on page 215 for more
details.
• Check if the shared folder is a subfolder of another (parent) share. Check that the parent share’s
access rights do not conflict with the subfolder share. It is recommended that you do not create
subfolder shares.
• Check if the user belongs to a group with conflicting access rights. DENY always takes
precedence. If you allow a user FULL access to a share but set his group to DENY , then he will
NOT be able to access the share.
• The local user should check if there are any existing mapped network drives to the NAS. He may
need to disconnect existing CIFS connections as new CIFS connection may use previously-saved
login information that may be different to NAS login.
• Check that the array in which the share resides, exists and is not down or degraded. If the array
is down or degraded, see Section 28.2 on page 337 .
• If the user is using DFS links, then he can only access the NAS using CIFS and not FTP.
• Check that the share has not been disabled.
I cannot import domain user or user group information even though testing of the connection
to the domain controller is OK.