ZyXEL Communications NSA-2401 用户手册

 Chapter 12 Troubleshooting

NSA-2401 User’s Guide

• 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.

V

I hear a buzzer sound coming from the NSA.

• By default when the NSA generates an emergency log, it also sounds an audible alarm to 

warn you. 

• Log into the Web Configurator. You will be presented with a screen that displays the log 

and lets you disable the buzzer. 

V

I forgot the IP address for the NSA.

• 192.168.1.3 is the default LAN1 IP address and 192.168.100.1 is the default LAN2 IP 

address.

• 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 changed the default password and you don’t have the NDU, use the RESET button 

at the front of the NSA. Refer to 

 for detailed information on the 

reset button.

V

I forgot the password.

• The default password is 1234.

• You may have to reset the NSA password or configuration - see 

 for 

detailed information on the reset button.

V

The NDU cannot discover my NSA.