Troubleshooting Tips
SURFboard® SBG6400 Wireless Cable Modem Gateway • User Guide
365-095-26377-x.1 This document is uncontrolled pending incorporation in an ARRIS CMS
Wireless devices cannot
send or receive data
If the problem still persists after checking the coaxial cable and
Ethernet connections and your IP address, check the Wireless
Security Mode setting on the Wireless Primary Network screen.
• If you enabled WPA and configured a passphrase on the gateway, be
sure each affected wireless client has the identical passphrase. If this
does not solve the problem, check if the wireless client supports WPA.
•
If you enabled WEP and configured a key on the gateway, 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 gateway.
Front Panel LED Icons and Error Conditions
The SBG6400 front panel LED icons provide status information for the following error conditions:
Table 6: Front Panel LED Icons and Error Conditions
If, During Normal Operation
OFF
Gateway is not properly
plugged into the electrical
Gateway is unplugged
BLINKING
Downstream receive channel
cannot be acquired
Downstream channel is lost
BLINKING
Upstream send channel cannot
be acquired
Upstream channel is lost
BLINKING
IP registration is unsuccessful IP registration is lost
OFF
Led is disabled Led is disabled
OFF
Led is disabled Led is disabled
