Cisco Cisco Aironet 1522 Lightweight Outdoor Mesh Access Point Guía Para Resolver Problemas
16
Troubleshooting a Mesh Network
OL-14326-01
Access Point Disappears
This section summarizes possible reasons why an access point might disappear from a mesh network.
•
When an access point disappears, it is not viewable from the controller GUI or CLI 60 seconds after
its disappearance.
its disappearance.
•
On Cisco WCS, the icon remains on the map display until the next polling period (default of 15
minutes) but is not available (greyed out). Limited historical information is available during this
time.
minutes) but is not available (greyed out). Limited historical information is available during this
time.
A bridge group name (BGN) is configured for
the RAP but not for MAPs.
the RAP but not for MAPs.
1) Assign a BGN to the MAP.
Note
MAPs will only connect to a
controller with a default BGN.
controller with a default BGN.
A bridge group name mismatch exists
between a RAP and a MAP.
between a RAP and a MAP.
1) Reconfigure the MAP bridge group name
to match the BGN of the appropriate RAP.
to match the BGN of the appropriate RAP.
Note
You have up to 30 minutes to make
this adjustment before the RAP
reboots.
this adjustment before the RAP
reboots.
Controller has defaulted to the manufacturing
time setting or is not set correctly causing the
certification to fail.
time setting or is not set correctly causing the
certification to fail.
1) Set correct time on the controller by
entering the following commands:
entering the following commands:
config time manual mm/dd/yy
config time timezone delta-hours
(delta-hours = difference in current time
in hours from the universal coordinated
time)
(delta-hours = difference in current time
in hours from the universal coordinated
time)
2) Configure the NTP server.
Table 5
LWAPP Join Failures (continued)
Possible cause
Solution/Debug steps
Table 6
Access Point Disappears
Possible cause
Solution/Debug Steps
RAP admin status was disabled then
re-enabled.
re-enabled.
1) Wait several minutes for MAPs to
reassociate with the controller.
reassociate with the controller.
Note
MAPs ignore admin status enable and
disable.
disable.
Parent of access point has rebooted.
1) Wait the approximate times specified in
.
Access point has excluded its parent.
1) To check for parent exclusion, look for the
ciscoLwappMeshChildExcludedParent
SNMP trap and the following Cisco WCS
message: “Parent AP being excluded by child
AP due to failed authentication, AP current
parent MAC address "{yy.yy.yy.yy.yy.yy},”
previous parent MAC address
"{xx.xx.xx.xx.xx.xx}.”
ciscoLwappMeshChildExcludedParent
SNMP trap and the following Cisco WCS
message: “Parent AP being excluded by child
AP due to failed authentication, AP current
parent MAC address "{yy.yy.yy.yy.yy.yy},”
previous parent MAC address
"{xx.xx.xx.xx.xx.xx}.”