In order to test connectivity and latency, we can instruct your computer to send and receive small amounts of data to one of Google’s servers, and to the equipment at your accommodation (these are called pings). For this we can use an application called Crosh, which is installed on your computer by default.
Performing a Ping Test:
1. Press Ctrl+Alt+T to open Crosh. The Crosh shell will open in a browser tab.
2. Line up the windows side by side and enter the following commands, one in each window:
First window:ping -c 100 google.co.uk
Second window:ping -c 100 gw
3. Press Enter to start the command in each window.
4. Allow all 100 pings to be completed. You will know when the test is finished as the text will stop
scrolling and you will see the words “ping statistics“.
5. Take a screenshot of the results, without cropping the image so that we can see the time stamp
Send the result to support@ask4.com, mentioning your issue reference number
Your screenshot should look something like below:
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:
- Press Ctrl+Alt+T to open Crosh. The Crosh shell will open in a browser tab.
-
Type the following command:
network_diag – wifi
Press Enter to start the command. - This test will provide you with some data, please copy and paste this into a text document. See example below:
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 Crosh 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. See example below:
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
Sending Your Screenshots
Take a screenshot of your whole screen, so that the time is visible in the bottom right corner.
We require this screenshot to be taken from the location in which you experience the problem.
The screenshots should be saved to your desktop as .PNG or .JPG files. These need emailing to the ASK4 Support team so that they can be analysed further. To do so, please send an email to the following address: support@ask4.com
Required information (please put this in the body of the email):
- Your full name
- Your building name, address and block/flat/room number
- Your contact number (optional)
- Your ASK4 username (optional)
- Your ASK4 issue reference number