ZyXEL Communications P-2602R-DxA Series User Manual

P-2602R/RL-DxA Series User’s Guide

Chapter 24 Troubleshooting

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In order to use the web configurator you need to allow:

• Web browser pop-up windows from your device.
• JavaScripts (enabled by default).

Table 97   Troubleshooting Accessing Your Device

I cannot 

access the 

ZyXEL Device.

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.

Make sure that there is not a telnet session running.
Use the ZyXEL Device’s WAN IP address when configuring from the WAN. Refer to 

the instructions on checking your WAN connection.
Use the ZyXEL Device’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 

 for details. 

Your computer’s and the ZyXEL Device’s IP addresses must be on the same subnet 

for LAN access.
If you changed the ZyXEL Device’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.

I cannot 

remotely 

manage the 

ZyXEL Device 

from the LAN 

or WAN.

Refer to 

 for scenarios when remote management may not be 

possible. 

Use the ZyXEL Device’s WAN IP address when configuring from the WAN. 
Use the ZyXEL Device’s LAN IP address when configuring from the LAN.