2.4 Ghz radio not found during the investigation of site

Hello. Today, I was on a site where people are wondering about wireless performance. This is a site where are only 10 users per AP, as you can see in the attached picture.

When I was at the local level marked in a red circle, I found the following

SNR:30
power:-64dBm
frequency: 5 GHz
Flow rate of 25Mbps download; Download 38Mbps

It has been tested with my laptop and Intel® WiFi Link 5300 adapter.

Although it seems all good, I try to find the 2.4 Ghz radio, but the software I used (Covera, Xirus, Inssider) cannot find the radio. I waited 10 minutes, and sometimes the radio appeared for 10 seconds and disappeared again. This is not the first time that occurred to me.

I also checked the auto-rf in the CLI WLC and attached the two.

No idea what is causing the radio0 to appear and disappear?

nothing wrong with the AP radio,

(1) not reset radio:

 Last radio reset code: 37 Radio resets - total:5 retries:0 failed:0 Reset Stats: Start Cnt: 4, Recovery: Cnt 0, Last Ret: 0, Fails: 0, Recvry Status: Stalled NO, In Prog NO Code/Count: 37/00003 1 62/00001 1 67/00001 0 

(2) no radio breaks down (rcore.d0):

 2 -rwx 287 Jan 1 1970 00:19:44 +00:00 info 3 -rwx 246 Jun 26 2015 10:17:41 +00:00 env_vars 4 -rwx 55762 May 24 2015 03:00:14 +00:00 event.log 5 -rwx 64 May 24 2015 03:00:10 +00:00 sensord_CSPRNG0 38 drwx 576 Jan 1 1970 00:19:37 +00:00 ap3g2-rcvk9w8-mx 6 drwx 2176 Mar 16 2015 14:38:19 +00:00 ap3g2-k9w8-mx.153-3.JA3 74 drwx 0 Mar 1 1993 00:01:08 +00:00 configs 281 -rwx 3567 Jan 19 2015 15:46:17 +00:00 private-config 75 -rwx 75 Jun 29 2015 09:09:04 +00:00 capwap-saved-config 76 -rwx 7192 Jun 29 2015 09:09:05 +00:00 private-multiple-fs 77 -rwx 64 May 24 2015 03:00:10 +00:00 sensord_CSPRNG1 78 -rwx 965 Apr 30 2015 16:59:55 +00:00 lwapp_mm_mwar_hash.cfg

(3) there are for clients connected to this wireless AP:

 Channel Utilization.......................... 9 % Attached Clients............................. 7 clients

(4) the adjusted maximum Tx power:

 ### Tx Power: Dot11 Config Serving Channel 1 (Type 0) Active Level Index 1 (Unitless) Active Level 16 dBm (OFDM 16 dBm) IEEE MIB format TRUE Metric unit dBm

(5) what I just noticed is that the AP has ID 4 and 4 attacks:

 *Jun 26 13:06:11.575: %WIDS-4-SIG_ALARM: Attack is detected on Sig:Standard Id:5 Channel:1 Source MAC:5cb5.245b.66f8 *Jun 26 13:06:12.579: %WIDS-4-SIG_ALARM: Attack is detected on Sig:Standard Id:5 Channel:1 Source MAC:5cb5.245b.66f8 *Jun 26 13:26:13.267: %WIDS-6-SIG_ALARM_OFF: Attack is cleared on Sig:Standard Id:5 Channel:1 *Jun 26 13:26:13.267: %WIDS-6-SIG_ALARM_OFF: Attack is cleared on Sig:Standard Id:5 Channel:1 *Jun 26 17:18:06.727: %WIDS-4-SIG_ALARM: Attack is detected on Sig:Standard Id:4 Channel:1 Source MAC:58a2.b5b0.1b06 *Jun 26 17:18:06.727: %WIDS-4-SIG_ALARM: Attack is detected on Sig:Standard Id:5 Channel:1 Source MAC:58a2.b5b0.1b06 *Jun 26 17:18:08.735: %WIDS-4-SIG_ALARM: Attack is detected on Sig:Standard Id:4 Channel:1 Source MAC:58a2.b5b0.1b06 *Jun 26 17:18:08.735: %WIDS-4-SIG_ALARM: Attack is detected on Sig:Standard Id:5 Channel:1 Source MAC:58a2.b5b0.1b06 *Jun 26 17:38:09.443: %WIDS-6-SIG_ALARM_OFF: Attack is cleared on Sig:Standard Id:4 Channel:1 *Jun 26 17:38:09.443: %WIDS-6-SIG_ALARM_OFF: Attack is cleared on Sig:Standard Id:4 Channel:1 *Jun 26 17:38:09.443: %WIDS-6-SIG_ALARM_OFF: Attack is cleared on Sig:Standard Id:5 Channel:1 *Jun 26 17:38:09.443: %WIDS-6-SIG_ALARM_OFF: Attack is cleared on Sig:Standard Id:5 Channel:1

4 ID = toggles Assoc

5 ID = toggles Auth

Just check again later, you should see this SSID

Tags: Cisco Wireless

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