ZyXEL Communications Vantage RADIUS 50 User Manual page 148

Vantage RADIUS User's Guide
PROBLEM
I cannot ping any
computer on the
LAN.
I cannot access
the web
configurator.
A-2
Chart A-2 Troubleshooting the Ethernet Interface
If the ETHERNET LED on the front panel is off, check the Ethernet cable
connections between your Vantage RADIUS and the Ethernet device.
Check the Ethernet cable connections between the Ethernet device and the LAN
computers.
Check for faulty Ethernet cables.
Make sure the LAN computer's Ethernet adapter is installed and working properly.
Verify that the IP address and the subnet mask of Vantage RADIUS, the Ethernet
device and the LAN computers are on the same subnet.
Your computer's and the Vantage RADIUS's IP addresses must be on the same
subnet for LAN access.
If you changed the Vantage RADIUS's 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.
CORRECTIVE ACTION
Troubleshooting