Troubleshooting
142
N300 Wireless Dual Band ADSL2+ Modem Router DGND3300v2
visible in your computer’s Network Control Panel. Verify that the IP address of the router
is listed as the default gateway.
• 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 th
at your cable or DSL 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 Basic Settings screen.
• Y
our ISP could 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, you need to configure
your router to “clone” or “spoof” the MAC address from the authorized computer.
Problems with Date and Time
Under Security in the main menu, select Schedule to view the current date and time of day.
The N300 wireless modem router uses the Network Time Protocol (NTP) to obtain the current
time from one of several network time servers on the Internet. Each entry in the log is
stamped with the date and time of day. Problems with the date and time function can include
the following:
• Date
shown is January 1, 2000.
Cause: The N300 wireless modem router has not yet successfully reached a Network
T
ime Server. Check that your Internet access is configured correctly. If you have just
completed configuring the N300 wireless modem router, wait at least 5 minutes, and
check the date and time again.
• T
ime is off by one hour.
Cause: The N300 wireless modem router does not automatically adjust for daylight
saving
s time. In the Schedule screen, select the Adjust for Daylight Savings Time check
box.
Wireless Connectivity
Note: If you are installing the N300 wireless modem router and have not
yet set up a wireless connection, see
Chapter 2, Wireless Settings,
or the N30
0 Wireless Dual Band ADSL2+ Modem Router Installation
Guide.
To add a wireless computer to an existing wireless network, you need to set up its wireless
card to match the N300 wireless modem router’s settings. You can use Push 'N' Connect
(WPS) (Connect Additional Wireless Client Devices after WPS Setup on
page 27) if your
computer supports it. You can also manually configure the computer’s wireless settings.
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