Performing a Wireless Environment test on Chrome

To see the wireless environment as your device does, we can use two simple Crosh ‘Terminal’ commands to collate the data we need. These commands help us to check for interference from other wireless networks or for problems with the equipment.


Performing the Network Diagnostic Tests:

  1. Press Ctrl+Alt+T to open Crosh. The Crosh shell will open in a browser tab.
  2. Type the following command:

    network_diag –wifi

    Press Enter to start the command.
  3. This test will provide you with some data, please copy and paste this into a text document.

    Please expand this to see an example
               crosh> network_diag --wifi
               iw dev wlan0 survey dump:
               Survey data from wlan0
                frequency: 2412 MHz
                noise: -92 dBm
                channel active time: 63 ms
                channel busy time: 49 ms
                channel receive time: 45 ms
                channel transmit time: 0 ms
               Survey data from wlan0
                frequency: 2417 MHz
                noise: -93 dBm
                channel active time: 62 ms
                channel busy time: 47 ms
                channel receive time: 41 ms
                channel transmit time: 0 ms
                Survey data from wlan0
               frequency: 2422 MHz
                noise: -92 dBm
                channel active time: 63 ms
                channel busy time: 4 ms
                channel receive time: 0 ms
                channel transmit time: 0 ms
    
               [truncated]
    
               Survey data from wlan0
                frequency: 5220 MHz
                noise: -94 dBm
                channel active time: 124 ms
                channel busy time: 0 ms
                channel receive time: 0 ms
                channel transmit time: 0 ms
               Survey data from wlan0
                frequency: 5240 MHz [in use]
                noise: -94 dBm
                channel active time: 15723 ms
                channel busy time: 513 ms
                channel receive time: 185 ms
                channel transmit time: 3 ms
               Survey data from wlan0
                frequency: 5260 MHz
                noise: -94 dBm
                channel active time: 85031 ms
                channel busy time: 84907 ms
                channel receive time: 84907 ms
                channel transmit time: 84907 ms
    
              [truncated]
    
              iw dev wlan0 station dump:
              Station 00:11:74:##:##:## (on wlan0)
               inactive time: 5444 ms
               rx bytes: 11797197
               rx packets: 38419
               tx bytes: 1703260
               tx packets: 9779
               tx retries: 14295
               tx failed: 43
               signal: -58 dBm
               signal avg: -60 dBm
               tx bitrate: 24.0 MBit/s
               rx bitrate: 300.0 MBit/s MCS 15 40MHz short GI
               authorized: yes
               authenticated: yes
               preamble: long
               WMM/WME: yes
               MFP: no
               TDLS peer: no
              iw dev wlan0 scan dump:
              BSS 00:11:74:##:##:##(on wlan0) -- associated
               TSF: 61418055#### usec (7d, 02:36:20)
               freq: 5240
               beacon interval: 100 TUs
               capability: ESS Privacy SpectrumMgmt ShortSlotTime (0x0511)
              signal: -60.00 dBm
               last seen: 847370 ms ago
               Information elements from Probe Response frame:
               Supported rates: 24.0* 36.0 48.0 54.0 
               DS Parameter set: channel 48
               Country: US Environment: Indoor/Outdoor
               Channels [36 - 36] @ 24 dBm
               Channels [40 - 40] @ 24 dBm
               Channels [44 - 44] @ 24 dBm
               Channels [48 - 48] @ 24 dBm
               Channels [52 - 52] @ 23 dBm
               Channels [56 - 56] @ 23 dBm
               Channels [60 - 60] @ 23 dBm
               Channels [64 - 64] @ 23 dBm
               Channels [100 - 100] @ 24 dBm
               Channels [104 - 104] @ 24 dBm
               Channels [108 - 108] @ 24 dBm
               Channels [112 - 112] @ 24 dBm
               Channels [116 - 116] @ 24 dBm
               Channels [120 - 120] @ 24 dBm
               Channels [124 - 124] @ 24 dBm
               Channels [128 - 128] @ 24 dBm
               Channels [132 - 132] @ 24 dBm
               Channels [136 - 136] @ 24 dBm
               Channels [140 - 140] @ 24 dBm
               Channels [144 - 144] @ 24 dBm
               Channels [149 - 149] @ 30 dBm
               Channels [153 - 153] @ 30 dBm
               Channels [157 - 157] @ 30 dBm
               Channels [161 - 161] @ 30 dBm
               Channels [165 - 165] @ 30 dBm
               Power constraint: 3 dB
               BSS Load:
               * station count: 2
               * channel utilisation: 4/255
               * available admission capacity: 31250 [*32us]
               HT capabilities:
               Capabilities: 0x9ef
               RX LDPC
               HT20/HT40
               SM Power Save disabled
               RX HT20 SGI
               RX HT40 SGI
               TX STBC
               RX STBC 1-stream
               Max AMSDU length: 7935 bytes
               No DSSS/CCK HT40
               Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
               Minimum RX AMPDU time spacing: 8 usec (0x06)
               HT TX/RX MCS rate indexes supported: 0-15
               HT operation:
               * primary channel: 48
               * secondary channel offset: below
               * STA channel width: any
               * RIFS: 1
               * HT protection: no
               * non-GF present: 1
               * OBSS non-GF present: 0
               * dual beacon: 0
               * dual CTS protection: 0
               * STBC beacon: 0
               * L-SIG TXOP Prot: 0
               * PCO active: 0
               * PCO phase: 0
               VHT capabilities:
               VHT Capabilities (0x338001b2):
               Max MPDU length: 11454
               Supported Channel Width: neither 160 nor 80+80
               RX LDPC
               short GI (80 MHz)
               TX STBC
               RX antenna pattern consistency
               TX antenna pattern consistency
               VHT RX MCS set:
               1 streams: MCS 0-9
               2 streams: MCS 0-9
               3 streams: not supported
               4 streams: not supported
               5 streams: not supported
               6 streams: not supported
               7 streams: not supported
               8 streams: not supported
               VHT RX highest supported: 0 Mbps
               VHT TX MCS set:
               1 streams: MCS 0-9
               2 streams: MCS 0-9
               3 streams: not supported
               4 streams: not supported
               5 streams: not supported
               6 streams: not supported
               7 streams: not supported
               8 streams: not supported
               VHT TX highest supported: 0 Mbps
               VHT operation:
               * channel width: 1 (80 MHz)
               * center freq segment 1: 42
               * center freq segment 2: 0
               * VHT basic MCS set: 0xfffc
               WMM: * Parameter version 1
               * u-APSD
               * BE: CW 15-1023, AIFSN 3
               * BK: CW 15-1023, AIFSN 7
               * VI: CW 7-15, AIFSN 2, TXOP 3008 usec
               * VO: CW 3-7, AIFSN 2, TXOP 1504 usec
               RSN: * Version: 1
               * Group cipher: CCMP
               * Pairwise ciphers: CCMP
               * Authentication suites: IEEE 802.1X FT/IEEE 802.1X
               * Capabilities: PreAuth 1-PTKSA-RC 1-GTKSA-RC MFP-capable (0x0081)
               * 0 PMKIDs
               * Group mgmt cipher suite: AES-128-CMAC
              iw dev wlan0 link:
              Connected to 00:11:74:##:##:## (on wlan0)
               freq: 5240
               RX: 11797197 bytes (38419 packets)
               TX: 1703260 bytes (9779 packets)
               signal: -58 dBm
               tx bitrate: 24.0 MBit/s
    
               bss flags: short-slot-time
               dtim period: 1
               beacon int: 100
           

  4. Next, open Cosh again and type the following command:

    connectivity show services

    Press Enter to start the command.
  5. This test will provide you with some data, please copy and paste this into a text document.

    Please expand this to see an example.
              crosh> connectivity show services
    
             /service/12
              AutoConnect: true
              CheckPortal: auto
              Connectable: true
              ConnectionId: 2069398120
              Country: US
              DNSAutoFallback: false
              Device: /device/wlan0
              EAP.AnonymousIdentity: anonymous
              EAP.CACert: 
              EAP.CACertID: 
              EAP.CACertNSS: 
              EAP.CertID: 
              EAP.ClientCert: 
              EAP.EAP: PEAP
              EAP.Identity: 
              EAP.InnerEAP: auth=MSCHAPV2
              EAP.KeyID: 
              EAP.KeyMgmt: WPA-EAP
              EAP.PIN: 
              EAP.PrivateKey: 
              EAP.RemoteCertification/0: /OU=Domain Control Validated/CN=
              EAP.RemoteCertification/1: /C=US/ST=Arizona/L=Scottsdale/O=GoDaddy.com, Inc./OU=http://certs.godaddy.com/repository//CN=Go Daddy Secure Certificate Authority - G2
              EAP.RemoteCertification/2: /C=US/ST=Arizona/L=Scottsdale/O=GoDaddy.com, Inc./CN=Go Daddy Root Certificate Authority - G2
              EAP.RemoteCertification/3: /C=US/O=The Go Daddy Group, Inc./OU=Go Daddy Class 2 Certification Authority
              EAP.SubjectMatch: 
              EAP.UseProactiveKeyCaching: false
              EAP.UseSystemCAs: true
              Error: Unknown
              ErrorDetails: 
              GUID: 5137BA48-0424-41B0-B5DE-29A427084925
              HTTPProxyPort: 34599
              IPConfig: /ipconfig/wlan0_1_dhcp
              IsActive: true
              LinkMonitorDisable: false
              ManagedCredentials: false
              Mode: managed
              Name: 
              PassphraseRequired: false
              PortalDetectionFailedPhase: 
              PortalDetectionFailedStatus: 
              PreviousError: 
              PreviousErrorSerialNumber: 0
              Priority: 0
              PriorityWithinTechnology: 0
              Profile: /profile/chronos/shill
              ProxyConfig: 
              SaveCredentials: true
              SavedIP.Address: 192.168.1.20
              SavedIP.Gateway: 192.168.1.1
              SavedIP.Mtu: 0
              SavedIP.NameServers: 192.168.1.1
              SavedIP.PeerAddress: 
              SavedIP.Prefixlen: 26
              SavedIPConfig/0/Address: 192.168.1.20
              SavedIPConfig/1/Gateway: 192.168.1.1
              SavedIPConfig/2/Mtu: 0
              SavedIPConfig/3/NameServers/0: 192.168.1.1
              SavedIPConfig/4/PeerAddress: 
              SavedIPConfig/5/Prefixlen: 26
              Security: 802_1x
              SecurityClass: 802_1x
              State: online
              Strength: 35
              Tethering: NotDetected
              Type: wifi
              UIData: 
              Visible: true
              WiFi.AuthMode: 
              WiFi.BSSID: 00:11:74:##:##:##
              WiFi.Frequency: 5240
              WiFi.FrequencyList/0: 2412
              WiFi.FrequencyList/1: 2462
              WiFi.FrequencyList/2: 5240
              WiFi.FrequencyList/3: 5320
              WiFi.HexSSID: ########
              WiFi.HiddenSSID: false
              WiFi.PhyMode: 7
              WiFi.PreferredDevice: 
              WiFi.ProtectedManagementFrameRequired: false
              WiFi.RoamThreshold: 0
              WiFi.VendorInformation/0/OUIList: 00-03-7f
    
            /service/15
              AutoConnect: false
              CheckPortal: auto
              Connectable: true
              ConnectionId: 0
              Country: US
              DNSAutoFallback: false
              Device: /device/wlan0
              EAP.AnonymousIdentity: 
              EAP.CACert: 
              EAP.CACertID: 
              EAP.CACertNSS: 
              EAP.CertID: 
              EAP.ClientCert: 
              EAP.EAP: 
              EAP.Identity: 
              EAP.InnerEAP: 
              EAP.KeyID: 
              EAP.KeyMgmt: NONE
              EAP.PIN: 
              EAP.PrivateKey: 
              EAP.SubjectMatch: 
              EAP.UseProactiveKeyCaching: false
              EAP.UseSystemCAs: true
              Error: Unknown
              ErrorDetails: 
              GUID: 
              HTTPProxyPort: 0
              IsActive: false
              LinkMonitorDisable: false
              ManagedCredentials: false
              Mode: managed
              Name: 
              PassphraseRequired: false
              PortalDetectionFailedPhase: 
              PortalDetectionFailedStatus: 
              PreviousError: 
              PreviousErrorSerialNumber: 0
              Priority: 0
              PriorityWithinTechnology: 0
              Profile: 
              ProxyConfig: 
              SaveCredentials: true
              Security: none
              SecurityClass: none
              State: idle
              Strength: 44
              Tethering: NotDetected
              Type: wifi
              UIData: 
              Visible: true
              WiFi.AuthMode: 
              WiFi.BSSID: 7c:69:f6:##:##:##
              WiFi.Frequency: 5320
              WiFi.FrequencyList/0: 5240
              WiFi.FrequencyList/1: 5320
              WiFi.HexSSID: ##########
              WiFi.HiddenSSID: false
              WiFi.PhyMode: 7
              WiFi.PreferredDevice: 
              WiFi.ProtectedManagementFrameRequired: false
              WiFi.RoamThreshold: 0
              WiFi.VendorInformation/0/OUIList: 00-10-18
          

  6. Send the text files to support@ask4.com, along with any other requested tests, and mentioning your issue reference number