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Bad Speed on WIFI good signal strenght.

Hi,

I have the follwing issue on one of our remote sites.  Users are complaining about bad performance on the wifi.

When looking at the Signal strenght and SNR i have around -60 dBm and SNR of 33.

The speed they are getting is sometimes less then 1Mpbs (speedtest to internet), what can be the cause off this and how to troubleshoot?


Client MAC Address............................... 30:24:32:da:25:f5
Client Username ................................. N/A
AP MAC Address................................... 2c:3e:cf:8f:85:70
AP Name.......................................... TR-IST-AP01002
AP radio slot Id................................. 0
Client State..................................... Associated
Client User Group................................
Client NAC OOB State............................. Access
Wireless LAN Id.................................. 4
Wireless LAN Network Name (SSID)................. LaLorraineMobile
Wireless LAN Profile Name........................ LaLorraineMobile
Hotspot (802.11u)................................ Not Supported
BSSID............................................ 2c:3e:cf:8f:85:72
Connected For ................................... 131 secs
Channel.......................................... 1
IP Address....................................... 10.17.236.76
Gateway Address.................................. Unknown
Netmask.......................................... Unknown
IPv6 Address..................................... fe80::a0ad:ea1c:9e8c:edfe
Association Id................................... 2
Authentication Algorithm......................... Open System
Reason Code...................................... 1
Status Code...................................... 0
Session Timeout.................................. 0
Client CCX version............................... 4
Client E2E version............................... 1
QoS Level........................................ Bronze
Avg data Rate.................................... 0
Burst data Rate.................................. 0
Avg Real time data Rate.......................... 0
Burst Real Time data Rate........................ 0
Avg Uplink data Rate............................. 0
Burst Uplink data Rate........................... 0
Avg Uplink Real time data Rate................... 0
Burst Uplink Real Time data Rate................. 0
802.1P Priority Tag.............................. 1
Security Group Tag............................... Unknown(0)
KTS CAC Capability............................... No
Qos Map Capability............................... Yes
WMM Support...................................... Enabled
  APSD ACs.......................................  BK  BE  VI  VO
Current Rate..................................... m13
Supported Rates.................................. 11.0,6.0,12.0,18.0,24.0,36.0,
    ............................................. 48.0,54.0
Mobility State................................... Local
Mobility Move Count.............................. 0
Security Policy Completed........................ Yes
Policy Manager State............................. RUN
Audit Session ID................................. f1e2000a0030f011564ffb5d
AAA Role Type.................................... none
Local Policy Applied............................. none
IPv4 ACL Name.................................... none
AAA FlexConnect ACL Applied Status............... Unavailable
IPv4 ACL Applied Status.......................... Unavailable
IPv6 ACL Name.................................... none
IPv6 ACL Applied Status.......................... Unavailable
Layer2 ACL Name.................................. none
Layer2 ACL Applied Status........................ Unavailable
Client Type...................................... SimpleIP
mDNS Status...................................... Disabled
mDNS Profile Name................................ none
No. of mDNS Services Advertised.................. 0
Policy Type...................................... WPA2
Authentication Key Management.................... PSK
Encryption Cipher................................ CCMP-128 (AES)
Protected Management Frame ...................... No
Management Frame Protection...................... No
EAP Type......................................... Unknown
FlexConnect Data Switching....................... Local
FlexConnect Dhcp Status.......................... Local
FlexConnect Vlan Based Central Switching......... No
FlexConnect Authentication....................... Central
FlexConnect Central Association.................. No
FlexConnect VLAN NAME............................ management
Quarantine VLAN.................................. 0
Access VLAN...................................... 836
Local Bridging VLAN.............................. 226
Client Capabilities:
      CF Pollable................................ Not implemented
      CF Poll Request............................ Not implemented
      Short Preamble............................. Not implemented
      PBCC....................................... Not implemented
      Channel Agility............................ Not implemented
      Listen Interval............................ 225
      Fast BSS Transition........................ Not implemented
      11v BSS Transition......................... Implemented
Client Wifi Direct Capabilities:
      WFD capable................................ No
      Manged WFD capable......................... No
      Cross Connection Capable................... No
      Support Concurrent Operation............... No
Fast BSS Transition Details:
DNS Server details:
      DNS server IP ............................. 0.0.0.0
      DNS server IP ............................. 0.0.0.0
Assisted Roaming Prediction List details:

Client Dhcp Required:     False
Allowed (URL)IP Addresses
-------------------------
AVC Profile Name: ............................... none
OpenDns Profile Name: ........................... none
Fastlane Client: ................................ No
Max DSCP: ....................................... 10
Fabric Statistics
--------------------
Client Statistics:
      Number of Bytes Received................... 21269307
      Number of Bytes Sent....................... 19319767
      Total Number of Bytes Sent................. 19319767
      Total Number of Bytes Recv................. 21269307
      Number of Bytes Sent (last 90s)............ 16775946
      Number of Bytes Recv (last 90s)............ 20153701
      Number of Packets Received................. 23422
      Number of Packets Sent..................... 27810
      Number of Interim-Update Sent.............. 0
      Number of EAP Id Request Msg Timeouts...... 0
      Number of EAP Id Request Msg Failures...... 0
      Number of EAP Request Msg Timeouts......... 0
      Number of EAP Request Msg Failures......... 0
      Number of EAP Key Msg Timeouts............. 0
      Number of EAP Key Msg Failures............. 0
      Number of Data Retries..................... 29604
      Number of RTS Retries...................... 0
      Number of Duplicate Received Packets....... 14
      Number of Decrypt Failed Packets........... 0
      Number of Mic Failured Packets............. 0
      Number of Mic Missing Packets.............. 0
      Number of RA Packets Dropped............... 0
      Number of Policy Errors.................... 0
      Radio Signal Strength Indicator............ -58 dBm
      Signal to Noise Ratio...................... 33 dB
Client RBACL Statistics:
      Number of RBACL Allowed Packets............ 0
      Number of RBACL Denied Packets............. 0

Client Rate Limiting Statistics:
      Number of Data Packets Received............ 0
      Number of Data Rx Packets Dropped.......... 0
      Number of Data Bytes Received.............. 0
      Number of Data Rx Bytes Dropped............ 0
      Number of Realtime Packets Received........ 0
      Number of Realtime Rx Packets Dropped...... 0
      Number of Realtime Bytes Received.......... 0
      Number of Realtime Rx Bytes Dropped........ 0
      Number of Data Packets Sent................ 0
      Number of Data Tx Packets Dropped.......... 0
      Number of Data Bytes Sent.................. 0
      Number of Data Tx Bytes Dropped............ 0
      Number of Realtime Packets Sent............ 0
      Number of Realtime Tx Packets Dropped...... 0
      Number of Realtime Bytes Sent.............. 0
      Number of Realtime Tx Bytes Dropped........ 0
Nearby AP Statistics:

 

 

 

3 Replies 3

marce1000
VIP
VIP

 

 - Usually you will need to have a look at the 'physical environment' such as disturbers , noise , interference, which can be done with a spectrum analyzer.  Below you will find an additional tutorial from Cisco :

          https://www.ciscolive.com/global/on-demand-library.html?search=wireless&search.event=ciscoliveanz2019&search.event=ciscoliveanz2018#/session/1506627285732001xtap

 M.



-- Each morning when I wake up and look into the mirror I always say ' Why am I so brilliant ? '
    When the mirror will then always repond to me with ' The only thing that exceeds your brilliance is your beauty! '

Scott Fella
Hall of Fame
Hall of Fame
You should have band select enable to try to get devices connected on 5GHz vs 2.4ghz. Also it seems like there are no nearby AP’s so if the device is further out and connected to 2.4ghz, I would suspect that might be the cause.
With this client device with good signal and snr was the throughput at that time good or bad? You need to make sure that you can replicate the issue and then capture what the controller displays for the client.
You can also disable lower data rates, make 5ghz 3-6db higher than the 2.4ghz radio, tweak the band select values, etc... but only when you know your true coverage area, client type and overlap of signal on both bands.
-Scott
*** Please rate helpful posts ***

Leo Laohoo
Hall of Fame
Hall of Fame

@Frederik De Muyter wrote:

AP radio slot Id................................. 0


Is there any reason why the wireless clients is using 2.4 Ghz?

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