Motorola ARRIS SURFboard SBM1000 Series User Manual page 68

Troubleshooting Tips
PROBLEM
Coax LED on the SBM1400
and SBM1100 adapters is
ON, but Speed LED is OFF
(continued)
Coax LED is OFF and Speed
LED is FLASHING when I
connect my MoCA adapter
to coaxial wiring with at
least one other MoCA
adapter connected
Video/Audio is distorted or
missing after connecting the
SBM1400 and SBM1100
adapters to my TV or set-top
box
SBM1000 SMART Video Adapter Kit • User Guide
590631-001-a
POSSIBLE SOLUTION
• If none of the above steps fixed the Speed LED problem, it
is possible your home coax network has large signal loss
due to long coax lengths, number of coax splitters, or
damaged components. In this case, if the SBM1000
adapters turn ON the Coax LED, but not the Speed LED,
your MoCA network will still function but it will not achieve
optimum data rates.
If the Coax LED does not illuminate on your MoCA adapter
after following the recommendations listed in
Guidelines, do the following:
• Confirm that the coaxial network configuration parameters
on the MoCA adapter(s) are the same as the rest of the
MoCA adapters on the coaxial network. It is critical that all
the MoCA adapters are configured with the same network
channel and security settings in order to create a network.
• Make sure that all cables are securely connected.
Remember to only hand-tighten the coaxial cables.
• Check that the MoCA adapters are connected to the same
coaxial wiring network in the home.
• Check to make sure all the coax connections are tight.
• Power OFF the MoCA adapters to confirm this is the
problem. If the problem still exists, then the splitter may be
defective.
• If turning OFF the MoCA adapters restores the video or
audio, then install a MoCA filter (included in the box)
between the splitter and the TV/set-top box and reconnect
the ECA and retest.
• Try reducing the beacon transmit power of the MoCA using
the SBM1000 Web Admin Interface.
It is highly recommended to not lower the Beacon power
level by more than 9 dB. This is done by selecting a beacon
power level from 10 to 7 in the Beacon Power Level
drop-down list. See Change the Default MoCA Beacon
Power Level for more information.
Note: When reducing the Beacon power, it must be
completed on both SBM1000 adapters. If reducing the
Beacon power does not resolve the issue, it is recommend
that the Beacon power is returned to 10 (default) on both
SBM1000 adapters.
Pre-Installation
60