Chapter 37 Troubleshooting
NR/FWA Indoor Series User’s Guide
327
I cannot connect to the Internet using an Ethernet connection.
1 Make sure you have the Ethernet WAN port connected to a Modem or Router.
2 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.
3 Check that the WAN interface you are connected to is in the same interface group as the Ethernet
connection (Network Setting > Interface Group).
4 If you set up a WAN connection using bridging service, make sure you turn off the DHCP feature in the
Network Setting > Home Networking > LAN Setup screen to have the clients get WAN IP addresses
directly from your ISP’s DHCP server.
I cannot connect to the Internet using a cellular connection.
1 The DSL and Ethernet connections have priority in that order. If the DSL or Ethernet connection is up,
then the cellular connection will be down.
2 Make sure you have connected a compatible cellular dongle to the USB port, if required.
3 Check that the Zyxel Device is within range of a cellular base station.
The Internet connection is slow or intermittent.
1 There might be a lot of traffic on the network. If the Zyxel Device is sending or receiving a lot of
information, try closing some programs that use the Internet, especially peer-to-peer applications.
2 Check the signal strength. Look at the LEDs, and check the LED section for more information. If the signal
strength is low, try moving the Zyxel Device closer to the ISP’s base station if possible, and look around to
see if there are any devices that might be interfering with the wireless network (such as microwaves,
other wireless networks).
3 For models that support external antennas, connect two external antennas to improve the cellular WAN
signal strength. Point the antennas to the base stations directions if you know where they are, or try
pointing the antennas in different directions and check which provides the strongest signal to the Zyxel
Device. See the Introduction chapter for more information.
4 Turn the Zyxel Device off and on.
5 If the problem continues, contact the network administrator or vendor, or try the advanced suggestions
in I cannot access the Web Configurator login screen.
Note: If your Zyxel Device is an outdoor-type, inclement weather like rain and hot weather
may affect cellular signals.
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