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ZyXEL Communications ZyWALL 2 Plus User Manual

Page 607

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Chapter 45 Troubleshooting

ZyWALL 2 Plus User’s Guide

607

6 If the problem continues, contact the network administrator or vendor, or try one of the

advanced suggestions.

Advanced Suggestions

• 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.

• Try to access the ZyWALL using another service, such as Telnet. If you can access the

ZyWALL, check the remote management settings, firewall rules, and SMT filters to find
out why the ZyWALL does not respond to HTTP.

• If your computer is connected to the WAN port or is connected wirelessly, use a computer

that is connected to a LAN port.

V

I can see the Login screen, but I cannot log in to the ZyWALL.

1 Make sure you have entered the user name and password correctly. The default user

name is admin, and the default password is 1234. These fields are case-sensitive, so
make sure [Caps Lock] is not on.

2 You cannot log in to the web configurator while someone is using the SMT, Telnet, or

the console port to access the ZyWALL. Log out of the ZyWALL in the other session, or
ask the person who is logged in to log out.

3 Disconnect and re-connect the power adaptor or cord to the ZyWALL.
4 If this does not work, you have to reset the device to its factory defaults. See

Section 2.3

on page 53

.

V

I cannot access the SMT. / I cannot Telnet to the ZyWALL.

See the troubleshooting suggestions for

I cannot see or access the Login screen in the web

configurator.

Ignore the suggestions about your browser.

V

I cannot use FTP to upload / download the configuration file. / I cannot use
FTP to upload new firmware.