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Users are facing dropping issue in guest network

jain.manish94
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Hello Team Plz help me to resolve the issue . Users are facing some dropping issue 5 to 6 times in 2 hours period. I checked the ap for interference was 78 % for 2.4ghz, Plz suggests me how to resolve it.

59 Replies 59

U mean to say it is bad right ? What to do now , What to do change. 

Add more access points. Get a professional site survey done so that you know what you need to do next.
-Scott
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There r some rogue aps using same ssid which I am using in production.  After clicking on rogue ap I can see mac address then ssid . Is this correct?

Yeah that is correct. You should provide more details and screenshots.
-Scott
*** Please rate helpful posts ***

Could u plz help which command output you need and screenshot . I will fatch

Because same ssid using by rogue aps according to me it should not good . What do u thing . Plz let me what command output u required

(Cisco Controller) >show ap auto-rf 802.11a bsacnwwa89ff-VS

Number Of Slots.................................. 2
AP Name.......................................... bsacnwwa89ff-VS
MAC Address...................................... a8:9d:21:36:81:60
Slot ID........................................ 1
Radio Type..................................... RADIO_TYPE_80211a
Sub-band Type.................................. All
Noise Information
Noise Profile................................ PASSED
Channel 36................................... -98 dBm
Channel 40................................... -96 dBm
Channel 44................................... -96 dBm
Channel 48................................... -97 dBm
Channel 52................................... -96 dBm
Channel 56................................... -94 dBm
Channel 60................................... -96 dBm
Channel 64................................... -94 dBm
Channel 100.................................. -96 dBm
Channel 104.................................. -96 dBm
Channel 108.................................. -96 dBm
Channel 112.................................. -97 dBm
Channel 116.................................. -96 dBm

--More-- or (q)uit
Channel 132.................................. -95 dBm
Channel 136.................................. -95 dBm
Channel 140.................................. -95 dBm
Channel 149.................................. -93 dBm
Channel 153.................................. -92 dBm
Channel 157.................................. -95 dBm
Channel 161.................................. -96 dBm
Channel 165.................................. -95 dBm
Interference Information
Interference Profile......................... PASSED
Channel 36................................... -128 dBm @ 0 % busy
Channel 40................................... -82 dBm @ 1 % busy
Channel 44................................... -128 dBm @ 0 % busy
Channel 48................................... -128 dBm @ 0 % busy
Channel 52................................... -128 dBm @ 0 % busy
Channel 56................................... -128 dBm @ 0 % busy
Channel 60................................... -128 dBm @ 0 % busy
Channel 64................................... -128 dBm @ 0 % busy
Channel 100.................................. -128 dBm @ 0 % busy
Channel 104.................................. -128 dBm @ 0 % busy
Channel 108.................................. -128 dBm @ 0 % busy
Channel 112.................................. -128 dBm @ 0 % busy
Channel 116.................................. -128 dBm @ 0 % busy

--More-- or (q)uit
Channel 132.................................. -128 dBm @ 0 % busy
Channel 136.................................. -128 dBm @ 0 % busy
Channel 140.................................. -128 dBm @ 0 % busy
Channel 149.................................. -128 dBm @ 0 % busy
Channel 153.................................. -128 dBm @ 0 % busy
Channel 157.................................. -128 dBm @ 0 % busy
Channel 161.................................. -128 dBm @ 0 % busy
Channel 165.................................. -128 dBm @ 0 % busy
Rogue Histogram (20/40/80/160)
.............................................
Channel 36................................... 3/ 0/ 0/ 0
Channel 40................................... 2/ 0/ 0/ 0
Channel 44................................... 1/ 0/ 0/ 0
Channel 48................................... 1/ 0/ 0/ 0
Channel 52................................... 0/ 0/ 0/ 0
Channel 56................................... 0/ 0/ 0/ 0
Channel 60................................... 0/ 0/ 0/ 0
Channel 64................................... 0/ 0/ 0/ 0
Channel 100.................................. 0/ 0/ 0/ 0
Channel 104.................................. 0/ 0/ 0/ 0
Channel 108.................................. 0/ 0/ 0/ 0
Channel 112.................................. 0/ 0/ 0/ 0
Channel 116.................................. 0/ 0/ 0/ 0

--More-- or (q)uit
Channel 132.................................. 0/ 0/ 0/ 0
Channel 136.................................. 0/ 0/ 0/ 0
Channel 140.................................. 0/ 0/ 0/ 0
Channel 149.................................. 0/ 0/ 0/ 0
Channel 153.................................. 0/ 0/ 0/ 0
Channel 157.................................. 0/ 0/ 0/ 0
Channel 161.................................. 0/ 0/ 0/ 0
Channel 165.................................. 0/ 0/ 0/ 0
Load Information
Load Profile................................. PASSED
Receive Utilization.......................... 0 %
Transmit Utilization......................... 0 %
Channel Utilization.......................... 2 %
Attached Clients............................. 1 clients
Coverage Information
Coverage Profile............................. PASSED
Failed Clients............................... 0 clients
Client Signal Strengths
RSSI -100 dbm................................ 0 clients
RSSI -92 dbm................................ 0 clients
RSSI -84 dbm................................ 0 clients
RSSI -76 dbm................................ 0 clients
RSSI -68 dbm................................ 0 clients

--More-- or (q)uit
RSSI -60 dbm................................ 1 clients
RSSI -52 dbm................................ 0 clients
Client Signal To Noise Ratios
SNR 0 dB.................................. 0 clients
SNR 5 dB.................................. 0 clients
SNR 10 dB.................................. 0 clients
SNR 15 dB.................................. 0 clients
SNR 20 dB.................................. 0 clients
SNR 25 dB.................................. 0 clients
SNR 30 dB.................................. 0 clients
SNR 35 dB.................................. 0 clients
SNR 40 dB.................................. 1 clients
SNR 45 dB.................................. 0 clients
Nearby APs
AP 00:fe:c8:be:d9:df slot 1.................. -55 dBm on 36 20MHz (10.209.200.234)
AP 20:4c:9e:0e:c7:5f slot 1.................. -86 dBm on 64 20MHz (10.209.200.234)
AP 20:4c:9e:0e:cf:af slot 1.................. -75 dBm on 132 20MHz (10.209.200.234)
AP bc:f1:f2:ce:09:3f slot 1.................. -60 dBm on 36 20MHz (10.209.200.234)
AP bc:f1:f2:ce:0e:3f slot 1.................. -79 dBm on 36 20MHz (10.209.200.234)

 

 

(Cisco Controller) >show advanced 802.11a monitor

Default 802.11a AP monitoring
802.11a Monitor Mode........................... enable
802.11a Monitor Mode for Mesh AP Backhaul...... disable
802.11a Monitor Channels....................... Country channels
802.11a RRM Neighbor Discover Type............. Transparent
802.11a RRM Neighbor RSSI Normalization........ Enabled
802.11a AP Coverage Interval................... 90 seconds
802.11a AP Load Interval....................... 60 seconds
802.11a AP Monitor Measurement Interval........ 180 seconds
802.11a AP Neighbor Timeout Factor............. 20
802.11a AP Report Measurement Interval......... 180 seconds

 

If i am getrimg -88 and -79 from one of nearest ap , where is the issue in my ap or nearest ap where I am getting -88 and - 79

You don’t have enough aps. You need to add more.
-Scott
*** Please rate helpful posts ***

Add more aps why ? I don understand your point could u plz give more details

Because your nearest AP neighboyis like -88 and -78 or something. That is not good. You should have at least one neighbor in the -60’s. Again, get a site survey done so you can see how far your signal goes from one AP and then also see the overlap. -67 rssi with 25dbi for voice and -72 rssi with 20dbi for data. You should have coverage overlap between aps.
-Scott
*** Please rate helpful posts ***

Site survey is not possible right now. Plz tell me any other temporary solution 

Can I do any changes in near ap so that I can see -60 , is this possible 

Jain,

You need to understand that anything we tell you to change might make things worse because we don’t know your environment, all issues the users might be facing, what is actually working well. We don’t even know where your AP’s are placed. Have you opened a TAC case so you can share that info with them and allow them to look at your setup and configuration?

Temporary fix is when you have identified an issue and can reproduce the issue but you found a fix that is temporary. Not, what else can I try to get this working. You really need someone to look at your environment and configuration along with understanding what devices are on the network.
-Scott
*** Please rate helpful posts ***

Ok i agree but one help. How to describe to client that this is big issue because now I can see -89 -91 dBm from nearest access point.

I am also don understand actually meaning of these value from near ap.

Plz describe . How to tell that this is affecting wifi network.

You need to understand what the real issue is and explain that to the client. I can’t say that the rssi is your issue your facing, but I’m pretty sure it is one of the issues. Hopefully you have Airmagnet or Ekahau site survey tool. Take some readings and then decide if you have the required coverage.
-Scott
*** Please rate helpful posts ***
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