ZyXEL Communications NSA-2401 用户手册

 Chapter 12 Troubleshooting

NSA-2401 User’s Guide

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A local user cannot access a share

• Check that the NSA is turned on and connected to the network. The local user should try 

to ping the NSA or use the NDU 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 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 ANONMYOUS 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.

V

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.