Alarm troubleshooting
Network Extender 3
User Guide
5-4
Table 5-2 provides recommended troubleshooting steps used to address issues raised
by the alarm IDs shown on the active alarms page.
Table 5-2. Alarm troubleshooting
Unique
Alarm ID
(Code)
Alarm Description Recommendation
20001 L3 not detected LTE L3 software protocol stacks
encountered an issue and LTE services
are not available, the device shall resume
normal operation after self-healing.
If the alert persists, please
restart your device.
20002 L2 not detected LTE L2 software protocol stacks
encountered an issue and LTE services
are not available, the device shall resume
normal operation after self-healing.
If the alert persists, please
restart your device.
20004 Flash memory
usage
There is a temporary memory usage alert,
but your device is still functioning
correctly.
This alert should clear itself.
20005 MME connection is
down
The device cannot communicate with
Verizon's Network. Please check the LAN/
Firewall settings, connectivity status and
available bandwidth.
If the problem persists,
please contact Verizon
Wireless Customer Service.
20006 RRM overload This alert should clear itself. If the alert persists for a long
time, please check the
number of users in the
“Connected Devices” tab
and see the capacity section
of the user guide.
20008 High CPU load There is a temporary CPU load alert, but
your device is still functioning correctly.
This alert should clear itself.
20009 High NACK level This is related to RF quality issue, there is
an excessive retransmission caused by an
external source of interference.
Please check the radio
environment and refer to the
4G LTE Network Extender
Placement as described in
Chapter 6.
20010 Over-the-air
synchronization lost
This is related to RF quality issue. Please Check for availability
of Verizon macro sites
signal.
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