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PPENDIX
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| Troubleshooting
Before Contacting Technical Support
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BEFORE CONTACTING TECHNICAL SUPPORT
Check the following items before you contact local Technical Support.
1. If wireless clients cannot access the network, check the following:
■Be sure the ADSL Router and the wireless clients are configured
with the same Service Set ID (SSID).
■If authentication or encryption are enabled, ensure that the wireless
clients are properly configured with the appropriate authentication
or encryption keys.
■If authentication is being performed through a RADIUS server,
ensure that the clients are properly configured on the RADIUS
server.
■If authentication is being performed through IEEE 802.1X, be sure
the wireless users have installed and properly configured 802.1X
client software.
■If MAC address filtering is enabled, be sure the client’s address is
included in the local filtering database or on the RADIUS server
database.
■If the wireless clients are roaming between ADSL Routers, make
sure that all the ADSL Routers and wireless devices in the Extended
Service Set (ESS) are configured to the same SSID, and
authentication method.
2. If the ADSL Router cannot be configured using the Telnet, a web
browser, or SNMP software:
■Be sur e to have co nfigure d the ADSL Router wit h a valid I P address ,
subnet mask and default gateway.
■Check that you have a valid network connection to the ADSL Router
and that the Ethernet port or the wireless interface that you are
using has not been disabled.
■If you are connecting to the ADSL Router through the wired
Ethernet interface, check the network cabling between the
management station and the ADSL Router. If you are connecting to
ADSL Router from a wireless client, ensure that you have a valid
connection to the ADSL Router.
■If you cannot connect using Telnet, you may have exceeded the
maximum number of concurrent Telnet sessions permitted (i.e, four
sessions). Try connecting again at a later time.