59
Solutions
Table 1 – Troubleshooting Solutions
Problem
Possible Solution
Power light is off
Check that the CH6643E is properly plugged into the
electrical outlet.
Check that the electrical outlet is working.
Press the
Power On/Off
button of CH6643E.
Cannot send or
receive data
On the front panel, note the status of the LEDs and refer to
Front-Panel LEDs and Error Conditions
to identify the error. If
you have cable TV, check that the TV is working and the
picture is clear. If you cannot receive regular TV channels,
the data service will not function.
Check the coaxial cable at the CH6643E and wall outlet.
Hand-tighten, if necessary.
Check the IP address.
Check that the Ethernet cable is properly connected to
the CH6643E and the computer.
If a device is connected via the Ethernet port, verify
connectivity by checking the LINK LEDs on the rear panel.
Wireless client(s)
cannot send or
receive data
Perform the first four checks in “Cannot send or receive
data.”
Check the Security Mode setting on the Wireless Security
Section:
•
If you enabled WPA and configured a passphrase on the
CH6643E, be sure each affected wireless client has the
identical passphrase. If this does not solve the problem,
check whether the wireless client supports WPA.
•
If you enabled WEP and configured a key on the
CH6643E, be sure each affected wireless client has the
identical WEP key. If this does not solve the problem,
check whether the client’s wireless adapter supports the
type of WEP key configured on the CH6643E.
•
To temporarily eliminate the Security Mode as a potential
issue, disable security.
After resolving your problem, be sure to re-enable wireless
security.
•
On the Wireless Access Control Section, be sure the MAC
address for each affected wireless client is correctly
listed.
Slow wireless
transmission speed
with WPA enabled
On the Wireless Primary Network Section, check whether
the WPA Encryption type is TKIP. If all of your wireless clients
support AES, change the WPA Encryption to AES.
Summary of Contents for CH6643
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