Chapter 27 Troubleshooting
P-662H/HW-D Series User’s Guide
338
27.3 Problems with the WAN
27.4 Problems Accessing the ZyXEL Device
Table 143 Troubleshooting the WAN
PROBLEM CORRECTIVE ACTION
The DSL LED is
off.
Check the telephone wire and connections between the ZyXEL Device DSL port
and the wall jack.
Make sure that the telephone company has checked your phone line and set it up
for DSL service.
Reset your ADSL line to reinitialize your link to the DSLAM. For details, refer to
the Table 140 on page 336.
I cannot get a
WAN IP address
from the ISP.
The ISP provides the WAN IP address after authenticating you. Authentication
may be through the user name and password, the MAC address or the host
name.
The username and password apply to PPPoE and PPPoA encapsulation only.
Make sure that you have entered the correct Service Type, User Name and
Password (be sure to use the correct casing). Refer to the WAN Setup chapter.
I cannot access
the Internet.
Make sure the ZyXEL Device is turned on and connected to the network.
Verify your WAN settings. Refer to the chapter on WAN setup.
Make sure you entered the correct user name and password.
If you use PPPoE pass through, make sure that bridge mode is turned on.
The Internet
connection
disconnects.
Check the schedule rules.
If you use PPPoA or PPPoE encapsulation, check the idle time-out setting. Refer
to Chapter 5 on page 81.
Contact your ISP.
Table 144 Troubleshooting Accessing the ZyXEL Device
PROBLEM CORRECTIVE ACTION
I cannot
access the
ZyXEL
Device.
The default user password is “user” and admin password is “1234”. The Password
field is case-sensitive. Make sure that you enter the correct password using the proper
case.
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 the chapter on
remote management 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.
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