ZyXEL Communications G-570U, User Manual

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ZyXEL G-570U User’s Guide
Chapter 8 Troubleshooting 101
8.4.1 Pop-up Windows, JavaScripts and Java Permissions
In order to use the web configurator you need to allow:
• Web browser pop-up windows from your device.
• JavaScripts (enabled by default).
• Java permissions (enabled by default).
Note: Internet Explorer 6 screens are used here. Screens for other Internet Explorer
versions may vary.
8.4.1.1 Internet Explorer Pop-up Blockers
You may have to disable pop-up blocking to log into your device.
Either disable pop-up blocking (enabled by default in Windows XP SP (Service Pack) 2) or
allow pop-up blocking and create an exception for your device’s IP address.
Cannot access the
web configurator.
Your computer’s and the G-570U’s IP addresses must be on the same subnet
for LAN access.
If you changed the G-570U’s IP address, then enter the new one as the URL.
If you don’t know the G-570U’s IP address, type the device name of your G-
570U as the URL. ZyXELXXXX is the default where “XXXX” is the last four
digits of the MAC address. The MAC address is on the bottom of the device).
If you just changed the G-570U’s IP address, your computer’s cache of machine
names may contain an entry that maps the name of the G-570U to its previous
IP address.
In Windows, use
nbtstat -R at the command prompt to delete all entries in your
computer’s cache of machine names.
Open a new browser window.
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
Option s 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.
Open a new browser window.
Table 31 Troubleshooting the Ethernet Interface (continued)
PROBLEM CORRECTIVE ACTION