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•
Check that the IP address of your gateway listed as the default gateway on your
computer. If a DHCP server assigns the IP configuration of your computer, this
information is not visible on your computer's Network Control Panel.
•
Check to see that the network address of your computer (the portion of the IP address
specified by the subnet mask) is different from the network address of the remote device.
•
Check that your cable or DSL broadband modem is connected and functioning.
•
If your ISP assigned a host name to your computer, enter that host name as the account
name in the Internet Setup screen.
•
Your ISP might be rejecting the Ethernet MAC addresses of all but one of your
computers.
Many broadband ISPs restrict access by allowing traffic only from the MAC address of
your broadband modem, but some ISPs additionally restrict access to the MAC address
of a single computer connected to that modem. If this is the case, configure your gateway
to clone or spoof the MAC address from the authorized computer.
Troubleshoot IP Addresses
By default, the gateway is set up to automatically assign IP addresses to network clients. The
gateway's IP address is 192.168.0.1 unless you changed it. Wired and wirelessly connected
computers must use network IP addresses on the same network as the gateway. The
simplest way to meet this requirement is to configure each computer to obtain an IP address
automatically using DHCP.
If you customized the IP address settings of your gateway and you're experiencing trouble
with network connections, check the following:
•
Make sure that your computer's IP address is on the same subnet as the gateway. If you
are using the recommended addressing scheme, your computer's address is in the
192.168.0.x range.
If your computer's IP address is shown as 169.254.x.x, recent versions of Windows and
Mac OS generate and assign an IP address if the computer cannot reach a DHCP server.
These autogenerated addresses are in the range of 169.254.x.x. If your IP address is in
this range, check the connection from the computer to the gateway and reboot your
computer.
•
If your gateway's IP address was changed and you do not know the current IP address,
clear the gateway's configuration to factory defaults. This sets the gateway's IP address
to 192.168.0.1. This procedure is explained in
Dual Band Wireless VDSL2 + Ethernet Gateway
Troubleshooting
119
Factory Settings
on page 122.
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