User Guide

Troubleshooting
145
N750 Wireless Dual Band Gigabit ADSL Modem Router DGND4000
If the wireless modem router does not save changes you have made in the browser
interface, check the following:
• W
hen entering configuration settings, be sure to click Apply before moving to another
screen or tab, or your changes could be lost.
• Click Refresh or Re
load in the web browser. The changes might have occurred, but the
web browser might be caching the old configuration.
Changes Not Saved
If the wireless modem router does not save the changes you make in the wireless modem
router interface, check the following:
• W
hen entering configuration settings, always click the Apply button before moving to
another screen or tab, or your changes are lost.
• Click the Refresh or Reload butto
n in the web browser. The changes might have
occurred, but the old settings might be in the web browser’s cache.
Incorrect Date or Time
Select ADVANCED > Security > Schedule to display the current date and time. The
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:
• Dat
e shown is January 1, 2000. This value means the wireless modem router has not yet
successfully reached a network time server. Check that your Internet access is
configured correctly. If you have finished setting up the wireless modem router, wait at
least 5 minutes, and check the date and time again.
• T
ime is off by one hour. The wireless modem router does not automatically sense daylight
saving time. In the Schedule screen, select the Automatically adjust for daylight
savings time check box.
Wireless Connectivity
If you are having trouble connecting wirelessly to the wireless modem router, try to isolate the
problem.
• Doe
s the wireless device or computer that you are using find your wireless network?
If not, check the Wireless LEDs on the front of t
he wireless modem router. They should
be lit. If they are not, you can press the WiFi On/Off button on the back of the wireless
modem router to turn the wireless modem router’s wireless radio back on.
If you disabled the wireless modem router’s SSI
D broadcast, then your wireless network
is hidden and does not show up in your wireless client’s scanning list. (By default, SSID
broadcast is enabled.)