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AP 1142 ssid dropping activity

Level 1
Level 1

I'm running a wpa2-secured guest ssid on a particular vlan that allows traffic to the web but restricts any access to internal network resources. It had been working fine for a couple of weeks, until the network started intermittenly dropping - at first I tried swapping channels and rebooting, but there has been no progress. I keep a running log at all times as long as the network is still active, but once it drops, the only message I'm getting is '

Line protocol on Interface Dot11Radio0, changed state to down'

My understanding would be that this is the same message logged when a user manually turns off the radio from a terminal window, is this correct? Or am I missing some basic troubleshooting steps?

dot11radio0 line

3 Replies 3

Leo Laohoo
Hall of Fame
Hall of Fame

Can you please post the complete output for the command "sh version" please?

Cisco IOS Software, C1140 Software (C1140-K9W7-M), Version 12.4(21a)JA1, RELEASE SOFTWARE (fc1)

Technical Support:

Copyright (c) 1986-2009 by Cisco Systems, Inc.

Compiled Wed 16-Sep-09 18:09 by prod_rel_team

ROM: Bootstrap program is C1140 boot loader

BOOTLDR: C1140 Boot Loader (C1140-BOOT-M) Version 12.4(18a)JA3, RELEASE SOFTWARE (fc1)

xxxxx uptime is 16 hours, 22 minutes

System returned to ROM by reload

System image file is "flash:/c1140-k9w7-mx.124-21a.JA1/c1140-k9w7-mx.124-21a.JA1"

This product contains cryptographic features and is subject to United

States and local country laws governing import, export, transfer and

use. Delivery of Cisco cryptographic products does not imply

third-party authority to import, export, distribute or use encryption.

Importers, exporters, distributors and users are responsible for

compliance with U.S. and local country laws. By using this product you

agree to comply with applicable laws and regulations. If you are unable

to comply with U.S. and local laws, return this product immediately.

A summary of U.S. laws governing Cisco cryptographic products may be found at:

If you require further assistance please contact us by sending email to

cisco AIR-AP1142N-A-K9     (PowerPC405ex) processor (revision B0) with 98294K/32768K bytes of memory.

Processor board ID FTX1449E08X

PowerPC405ex CPU at 586Mhz, revision number 0x147E

Last reset from reload

1 Gigabit Ethernet interface

2 802.11 Radio(s)

32K bytes of flash-simulated non-volatile configuration memory.

Base ethernet MAC Address: xx:xx:xx:xx:xx:xx

Part Number                          : 73-11451-08

PCA Assembly Number                  : 800-30554-06

PCA Revision Number                  : A0

PCB Serial Number                    : FOC14471CML

Top Assembly Part Number             : 800-31273-04

Top Assembly Serial Number           : FTX1449E08X

Top Revision Number                  : A0

Product/Model Number                 : AIR-AP1142N-A-K9   

Configuration register is 0xF


There you go

Thanks for the output.

Can you download the Bootstrap of the 1140 and upgrade to 12.4(23c)JA1?

To install, use the command "copy tftp:///Bootstrap filename bs:"