matches with that configured on the ACS server. For information on how to debug, refer to
Debug Authentications.
Q. When I viewed the logs on the AP, I found this error: "Mar 9
11:05:26.225 Information Group rad_acct: Radius server
10.10.1.172:1645,1646 is responding again (previously
dead). Mar 9 11:03:09.361 Error Group rad_acct: No active
radius servers found." What is the cause of this error and how can I
resolve the problem?
A. It is normal to see this log when the setting radius−server deadtime is configured on the
AP. It is an information log and not a major problem. Use the radius−server deadtime
command in order to set an interval during which the AP does not attempt to use servers that
do not respond, thus avoiding the wait for a request to time out before trying the next
configured server. A server marked as dead is skipped by additional requests for the duration
of minutes that you specify, up to 1440 (24 hours).
Q. I have an AP 1230 with Cisco IOS Software Release 12.3(4)JA. When I
update the access control list (ACL), I receive this message:"%
Warning: Saving this config to nvram may corrupt any
network management or security files stored at the end of
nvram. Continue? [no]:"
A. This is a warning message and not an error. If you select [no] then it does not save on the
access points (APs). The configurations are not saved on the non−volatile RAM (NVRAM),
they are saved on the Flash.
Even though it is a warning, you do have a memory issue on this AP. You have numerous
.rcore files that take up a lot of space on your memory. This output shows an example:
3 −rwx 262144 Mar 3 2002 22:40:04 +00:00 r13_5705_9760_1EA7A81E.rcore
4 −rwx 262144 Mar 1 2002 17:21:44 +00:00 r13_5705_9760_709D16F4.rcore
5 −rwx 262144 Mar 7 2002 20:19:12 +00:00 r13_5705_9760_9D2DE9CD.rcore
6 −rwx 262144 Mar 26 2002 23:42:22 +00:00 r13_5705_9760_AAE78172.rcore
151−rwx 262144 Mar 1 2002 17:22:00 +00:00 r13_5705_9760_7187935C.rcore
In order to clean the memory, erase all of the .rcore files from Flash.
This is an example of the command you need to enter in enable mode:
ap#delete flash:r13_5705_9760_1EA7A81E.rcore
Note: Issue this delete flash: command for every .rcore file on your Flash.
Q. I have a Wireless LAN Services Module (WLSM) with Cisco IOS
Software Release 12.4(4)T1 installed. Connections to clients are
dropping. After I look up logs, I see a number of messages such as
"Previous authentication no longer valid"and "Disassociated because
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