Chapter 39 Troubleshooting
VMG3925-B10A User’s Guide
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2 Make sure you have the Ethernet WAN port connected to a Modem or Router.
3 Make sure you configured a proper Ethernet WAN interface (Network Setting > Broadband
screen) with the Internet account information provided by your ISP and that it is enabled.
4 Check that the WAN interface you are connected to is in the same interface group as the Ethernet
connection (Network Setting > Interface Grouping).
5 If you set up a WAN connection using bridging service, make sure you turn off the DHCP feature in
the LAN screen to have the clients get WAN IP addresses directly from your ISP’s DHCP server.
I cannot connect to the Internet using a 3G connection.
1 The DSL and Ethernet connections have priority in that order. If the DSL or Ethernet connection is
up, then the 3G connection will be down.
2 Make sure you have connected a compatible 3G dongle to the USB port.
3 Make sure you have configured Network Setting > Broadband > 3G Backup correctly.
4 Check that the VMG is within range of a 3G base station.
I cannot access the VMG anymore. I had access to the VMG, but my connection is not
available anymore.
1 Your session with the VMG may have expired. Try logging into the VMG again.
2 Check the hardware connections, and make sure the LEDs are behaving as expected. See the
Quick Start Guide and Section 1.5 on page 17.
3 Turn the VMG off and on.
4 If the problem continues, contact your vendor.
39.4 Wireless Internet Access
What factors may cause intermittent or unstabled wireless connection? How can I solve this
problem?
The following factors may cause interference:
• Obstacles: walls, ceilings, furniture, and so on.
• Building Materials: metal doors, aluminum studs.
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