ZyXEL p-320w 사용자 가이드

P-320W User’s Guide

Chapter 16 Troubleshooting

153

Table 67   Troubleshooting Telnet

Cannot access the 

Prestige from the 

LAN or WAN.

Refer to 

 for scenarios when remote management 

may not be possible. 

When NAT is enabled:
•

Use the Prestige's WAN IP address when configuring from the WAN. 

•

Use the Prestige's LAN IP address when configuring from the LAN.

Table 68   Troubleshooting Accessing the Prestige

I cannot 

access the 

Prestige.

The username is “admin”. The default password is “1234”. The Password and 

Username fields are case-sensitive. Make sure that you enter the correct password 

and username using the proper casing.
If you have changed the password and have now forgotten it, you will need to upload 

the default configuration file. This restores all of the factory defaults including the 

password.

I cannot 

access the 

web 

configurator.

Use the Prestige’s WAN IP address when configuring from the WAN. Refer to the 

instructions on checking your WAN connection.
Use the Prestige’s LAN IP address when configuring from the LAN. Refer to for 

instructions on checking your LAN connection.
Check that you have enabled web service access. If you have configured a secured 

client IP address, your computer’s IP address must match it. Refer to the chapter on 

remote management for details. 
Your computer’s and the Prestige’s IP addresses must be on the same subnet for LAN 

access.
If you changed the Prestige’s LAN IP address, then enter the new one as the URL.
See the following section to check that pop-up windows, JavaScripts and Java 

permissions are allowed.

You may also need to clear your Internet browser’s cache.
In Internet Explorer, click Tools and then Internet Options to open the Internet 

Options screen. 
In the General tab, click Delete Files. In the pop-up window, select the Delete all 

offline content check box and click OK. Click OK in the Internet Options screen to 

close it.

If you disconnect your computer from one device and connect it to another device that 

has the same IP address, your computer’s ARP (Address Resolution Protocol) table 

may contain an entry that maps the management IP address to the previous device’s 

MAC address). 
In Windows, use arp -d at the command prompt to delete all entries in your computer’s 

ARP table.