ZyXEL Zyxel Nsa320 Network Multimedia Server NSA320 User Manual

Chapter 17 Troubleshooting

NSA320 User’s Guide

• 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 NSA’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 

 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 NSA. He may need to disconnect existing CIFS connections as new CIFS 

connection may use previously-saved login information that may be different to 

NSA 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 

• If the user is using DFS links, then he can only access the NSA 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.

• Check the NSA’s DNS setting. The DNS server the NSA is using must be able to 

resolve the domain controller’s address. If the domain controller uses a private 

IP address, the NSA needs to use a private DNS server. If the domain controller 

uses a public IP address, the NSA needs to use a public DNS server.

• Leave the domain and re-join it.

 A domain user can’t access a share.