ZyXEL Communications NSA-220 ユーザーズマニュアル

 Chapter 15 Troubleshooting

NSA-220 User’s Guide

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The LAN LED (by the LAN port) is off.

• Make sure the Ethernet cable is connected properly to the NSA and connected to another 

(Ethernet) device. Make sure the other device is turned on. If it’s connected directly to a 
computer, make sure that the computer network card is working (ping 127.0.0.1 on the 
computer).

• Use another Ethernet cable. If you’re connecting to a Gigabit Ethernet, make sure you’re 

using an 8-wire Ethernet cable. 

• If the problem continues, contact the vendor.

See 

 for a description of NSA LEDs.

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I forgot the server name of the NSA.

• The default server name is nsa220. 

• Use the NDU (NSA Discovery Utility) to discover your NSA. If you have admin 

privileges, you can directly change the IP address of the NSA using the NDU.

• If the server name has changed and you don’t have the NDU, see 

 to use the RESET button to return the default setting.

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I cannot get to the NSA login screen.

• Use the NDU (NSA Discovery Utility) to discover your NSA. If you have admin 

privileges, you can directly change the IP address of the NSA using the NDU.

• If you used the RESET button, the NSA may have a new IP address. Close and reopen the 

NDU to discover the NSA.

• Make sure the NSA is turned on. 

• If you are trying to login directly by typing the server name into your web browser’s 

address field, make sure you are using the correct server name as the web site address.

• The default server name is nsa220, if you have changed the server name, use the new 

one.

• If the server name has been changed and you do not know the new server name, see 

the troubleshooting suggestions for 

• If it still doesn’t work, try using the NDU. 

• Check the hardware connections, and make sure the LEDs are behaving as expected. See 

the Quick Start Guide and