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You are here: Home > Using Troubleshooting Tools > Troubleshooting Network Issues > Troubleshooting AP Connectivity Issues

Troubleshooting AP Connectivity Issues

The following tests are available to diagnose issues pertaining to WLANWireless Local Area Network. WLAN is a 802.11 standards-based LAN that the users access through a wireless connection. network connections:

Ping Test

Sends ICMPInternet Control Message Protocol. ICMP is an error reporting protocol. It is used by network devices such as routers, to send error messages and operational information to the source IP address when network problems prevent delivery of IP packets. echo packets to the hostname or IP addresses of the selected devices to check for latency issues.

To perform a ping test on APs:

  1. In the Network Operations app, select one of the following options:
    • To select a group, label, site, or all devices in the filter, set the filter to one of the options under Groups, Labels, or Sites. For all devices, set the filter to Global.
    • The dashboard context for the selected filter is displayed.
    • To select a device in the filter:
      1. Set the filter to Global.
      2. Under Manage, click Devices > Access Points.

        A list of access points is displayed in the List view.

      3. Click an access point listed under Device Name for which you want to perform diagnostic test.

        The dashboard context for the access point is displayed.

  2. Under Analyze > Tools, click Network Check.
  3. From the Device Type drop-down list, select Access Point.

  4. From the Sources drop-down list, select source(s). You can select multiple APs.

  5. From the Test drop-down list, select Ping Test.
  6. From the Destination Type drop-down list, select one of the following:
    • Hostname/IP Address—Enter the hostname or IP address.
    • Client—Select a client.
  7. To use additional parameters, click Show Additional Test Settings and enter values in the following fields:

    Show Additional Test Settings is not displayed when a Test type is not selected.

  1. In the Packet Size field, enter the packet size in order to capture and store the data packet to analyze network issues at a later stage. The range is from 10 to 65507 bytes.
  2. In the Count field, enter the count. The value should be between 1 to 2147483647.
  3. Select Port from the Source Interface drop-down list and select the port number.
  1. Click Run. The output is displayed in the Device Output section.


Traceroute

Tracks the packets routed from a network host.

To perform a traceroute test on APs:

  1. In the Network Operations app, select one of the following options:
    • To select a group, label, site, or all devices in the filter, set the filter to one of the options under Group, Label, or Site. For all devices, set the filter to Global.

      The dashboard context for the selected filter is displayed.

    • To select a device in the filter:
      1. Set the filter to Global.
      2. Under Manage, click Devices > Access Points.

        A list of access points is displayed in the List view.

      3. Click an access point listed under Device Name for which you want to perform diagnostic test.

        The dashboard context for the access point is displayed.

  2. Under Analyze > Tools, click Network Check.
  3. From the Device Type drop-down list, select Access Point.
  4. From the Test drop-down list, select Traceroute.
  5. From the Sources drop-down list, select source(s). You can select multiple APs.
  6. Enter the hostname or IP address.
  7. Click Run. The output is displayed in the Device Output section.

HTTP Test

Sends packets to the HTTPHypertext Transfer Protocol. The HTTP is an application protocol to transfer data over the web. The HTTP protocol defines how messages are formatted and transmitted, and the actions that the w servers and browsers should take in response to various commands. URLUniform Resource Locator. URL is a global address used for locating web resources on the Internet. and tries to establish a connection and exchange data. If the HTTP website returns a response, it indicates that the web server is up and reachable. If the HTTP website does not return a response, it indicates that the server is down and did not return a response.

To perform an HTTP test on APs:

  1. In the Network Operations app, select one of the following options:
    • To select a group, label, site, or all devices in the filter, set the filter to one of the options under Group, Label, or Site. For all devices, set the filter to Global.

      The dashboard context for the selected filter is displayed.

    • To select a device in the filter:
      1. Set the filter to Global.
      2. Under Manage, click Devices > Access Points.

        A list of access points is displayed in the List view.

      3. Click an access point listed under Device Name for which you want to perform diagnostic test.

        The dashboard context for the access point is displayed.

  2. Under Analyze > Tools, click Network Check.
  3. From the Device Type drop-down list, select Access Point.
  4. From the Test drop-down list, select HTTP Test.
  5. From the Sources drop-down list, select source(s). You can select multiple APs.
  6. Enter the HTTP URL for which you want to perform the HTTP test, in the URL field, For example, http://hostname or http://ipaddress.
  7. To use additional parameters, click Show Additional Test Settings, and in the Timeout field, enter the timeout value in seconds.
    The value should be from 1 to 10 seconds. The default timeout value is 1 second.

    Show Additional Test Settings is not displayed when a Test type is not selected.

  1. Click Run. The test output is displayed in the Device Output section.

Important Points to Note

  • HTTP test is supported only for APs residing on AOS version 8.3.0.0 or above.
  • The test supports only IPv4 address or domain name in the URL field.

HTTPS Test

Sends packets to the HTTPSHypertext Transfer Protocol Secure. HTTPS is a variant of the HTTP that adds a layer of security on the data in transit through a secure socket layer or transport layer security protocol connection. URL and tries to establish a connection and exchange data.If the HTTPS website returns a response, it indicates that the web server is up and reachable. If the HTTPS website does not return a response, it indicates that the server is down and did not return a response.

To perform an HTTPS URL test on APs:

  1. In the Network Operations app, select one of the following options:
    • To select a group, label, site, or all devices in the filter, set the filter to one of the options under Group, Label, or Site. For all devices, set the filter to Global.

      The dashboard context for the selected filter is displayed.

    • To select a device in the filter:
      1. Set the filter to Global.
      2. Under Manage, click Devices > Access Points.

        A list of access points is displayed in the List view.

      3. Click an access point listed under Device Name for which you want to perform diagnostic test.

        The dashboard context for the access point is displayed.

  2. Under Analyze > Tools, click Network Check.
  3. From the Device Type drop-down list, select Access Point.
  4. From the Test drop-down list, select HTTPS Test.
  5. From the Sources drop-down list, select source(s). You can select multiple APs.
  6. Enter the HTTPS URL for which you want to perform the HTTPS test, in the URL field, For example, https://URL or https://IPv4.
  7. To use additional parameters, click Show Additional Test Settings and in the Timeout field, enter the timeout value in seconds.
    The value should be from 1 to 10 seconds. The default timeout value is 1 second.

    Show Additional Test Settings is not displayed when a Test type is not selected.

  1. Click Run. The test output is displayed in the Device Output section.

Important Points to Note

  • HTTPS test is supported only for APs residing on AOS version 8.4.0.0 or above.
  • The test supports only IPv4 address or domain name in the URL field.

TCP Test

Sends packets to the host, for example, FTPFile Transfer Protocol. A standard network protocol used for transferring files between a client and server on a computer network. server, and tries to establish a connection and exchange data. If the FTP server returns a response, the issue could be isolated to the client device.

To perform a TCPTransmission Control Protocol. TCP is a communication protocol that defines the standards for establishing and maintaining network connection for applications to exchange data. test on APs:

  1. In the Network Operations app, select one of the following options:
    • To select a group, label, site, or all devices in the filter, set the filter to one of the options under Group, Label, or Site. For all devices, set the filter to Global.

      The dashboard context for the selected filter is displayed.

    • To select a device in the filter:
      1. Set the filter to Global.
      2. Under Manage, click Devices > Access Points.

        A list of access points is displayed in the List view.

      3. Click an access point listed under Device Name for which you want to perform diagnostic test.

        The dashboard context for the access point is displayed.

  2. Under Analyze > Tools, click Network Check.
  3. From the Device Type drop-down list, select Access Point.
  4. From the Test drop-down list, select TCP Test.
  5. From the Sources drop-down list, select source(s). You can select multiple APs.
  6. Enter a valid IPv4 address in the Host field. Hostname is not supported.
  7. Enter the port number., in the Port field. The port number should be between 1 to 65535.
  8. To use additional parameters, click Show Additional Test Settings, and in the Timeout field, enter the timeout value in seconds.
    The value should be from 1 to 10 seconds. The default timeout value is 5 seconds.

    Show Additional Test Settings is not displayed when a Test type is not selected.

  1. Click Run. The output is displayed in the Device Output section.

Important Point to Note

  • TCP test is supported only for APs residing on AOS version 8.3.0.0 or above.

Speed Test (iPerf)

Performs a speed test to measure network speed and bandwidth. To perform a speed test, you must provide the iPerf server address, protocol type, and speed test options such as bandwidth.

To execute a speed test on APs:

  1. In the Network Operations app, select one of the following options:
    • To select a group, label, site, or all devices in the filter, set the filter to one of the options under Group, Label, or Site. For all devices, set the filter to Global.

      The dashboard context for the selected filter is displayed.

    • To select a device in the filter:
      1. Set the filter to Global.
      2. Under Manage, click Devices > Access Points.
      3. A list of access points is displayed in the List view.
      4. Click an access point listed under Device Name for which you want to perform diagnostic test.

        The dashboard context for the access point is displayed.

  2. Under Analyze > Tools, click Network Check.
  3. From the Device Type drop-down list, select Access Point.
  4. From the Test drop-down list, select Speed Test (iPerf).
  5. From the Sources drop-down list, select source(s). You can select multiple APs.

    While performing troubleshooting on APs, a maximum of 20 APs are listed in the drop-down list. If there are more than 20 APs, use the Search option to search for an AP on which you would like to perform diagnostic checks.
    If you navigate from the device details page, the Tools page appears, where the device context is already set and the Source field is automatically populated based on your selection.

  1. In the Host field, enter a valid hostname.
  2. From the Protocol drop-down list, select the protocol. The available options are TCP or UDP.
  3. To use additional parameters, click Show Additional Test Settings, and in the Options field, enter an option.
    For example, bandwidth.

    Show Additional Test Settings is not displayed when a Test type is not selected.

  1. Click Run. The test output is displayed in the Device Output section.

For Campus AP only Speed Test is available to diagnose the connectivity issues.

For information about viewing and downloading the output, see Viewing the Device Output.