ZyXEL Communications MAX-200M1 Series, Руководство пользователя

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ZyXEL MAX-200M1 Series User’s Guide
206 Chapter 21 Troubleshooting
21.3 Problems with the WAN
21.4 Problems with the Link Quality
Table 88 Troubleshooting the WAN
PROBLEM CORRECTIVE ACTION
I cannot connect to
the Internet.
Check your connection. Look at the LINK and SIGNAL LEDs on the front of the
ZyXEL Device. If the ZyXEL Device cannot detect a signal, follow the steps in
Section 21.4 on page 206 to search for a wireless signal.
Check your security settings. In the web configurator, go to the Status screen.
Click Profile in the WiMAX Information box and make sure that you are using the
correct security settings for your Internet account.
Check your WiMAX settings. The ZyXEL Device may have been set to search the
wrong frequencies for a wireless connection. In the web configurator, go to the
Status screen. Click Site Information in the WiMAX Information box and ensure
that the values are correct. If the values are incorrect, enter the correct frequency
settings in the Network > WAN > WiMAX Frequency screen. If you are unsure of
the correct values, contact your service provider.
Check your IP address settings. You may be using IP address settings
incompatible with your Internet account. If you are unsure of the correct settings,
contact your service provider. See Appendix C on page 223 for information on how
to set up your IP address.
The Internet
connection
disconnects.
Check your WiMAX link and signal strength using the LINK and SIGNAL LEDs on
the device. See the following section if signal strength is poor or the ZyXEL Device
has no link to a base station.
Contact your ISP if the problem persists.
Table 89 Troubleshooting Link Quality
PROBLEM CORRECTIVE ACTION
Internet access is
slow or
intermittent.
The quality of the ZyXEL Device’s wireless connection to the base station may be
poor.
Poor signal reception may be improved by moving the ZyXEL Device away from
thick walls and other obstructions, or to a higher floor in your building.
There may be radio interference caused by nearby electrical devices such as
microwave ovens and radio transmitters. Move the ZyXEL Device away or switch
the other devices off.
Weather conditions may also affect signal quality.
As well as having an external antenna connector, the ZyXEL Device is equipped
with an internal directional antenna. If you know the location of the base station,
orient the front of the ZyXEL Device (the side with the LEDs) towards the base
station. If you do not know the location of the base station, experiment by moving
the ZyXEL Device while observing the SIGNAL LEDs for an increase in received
signal strength.