Troubleshooting
144
NXA-WAPZD1000 ZoneDirector Smart WLAN Controller
3.
Locate the problematic user account in the table, and click the check box to the left of the user’s name.
4.
Click Delete.
5.
Click the Create New button to create a new user account for this user. Enter a user name and password,
and choose a role from the drop-down menu.
6.
Send a notification to the user with instructions on how to re-configure their client and log into the
WLAN again.
At the end of this process, the user should be reconnected. If problems persist, they may originate in Windows
or in the wireless network adapter.
Measuring Wireless Network Throughput with SpeedFlex
SpeedFlex is a wireless performance tool included in the NXA-WAPZD1000 that you can use to measure the
downlink throughput between the NXA-WAPZD1000 and a wireless client, the NXA-WAPZD1000 and an
AP, and a wireless client and an AP. When performing a site survey, you can use SpeedFlex to help find the
optimum location for APs on the network with respect to user locations.
To measure the throughput of an AP or a client from the Browser-Based Configuration Pages:
1.
Find out the MAC address of the AP or wireless client that you want to use for this test procedure.
2.
If you are testing client throughput, verify that the wireless client is associated with the AP that you want
to test.
3.
Log in to the Browser-Based Configuration Pages. You can use the wireless client that you are testing or
another computer to log in to the Configuration Pages.
4.
If you want to test AP throughput, click Monitor > Access Points. If you want to test client throughput,
click Monitor > Currently Active Clients.
5.
In the list of APs or clients, look for the MAC address of the AP or wireless client that you want to test,
and then click the SpeedFlex link on the same row. The SpeedFlex Wireless Performance Test interface
loads, showing a speedometer and the IP address of the AP or client that you want to test.
6.
If you are testing AP throughput, you have the option to test both Downlink and Uplink throughput. Both
options are selected by default. If you only want to test one of them, clear the check box for the option
that you do not want to test.
7.
Click the Start button.
If the target client does not have SpeedFlex installed, a message appears in the NXA-WAPZD1000
administrator’s browser, informing you that the SpeedFlex tool has to be installed and running on
the client before the wireless performance test can continue. Click the OK button on the message,
download the appropriate SpeedFlex version (Windows or Mac) from http://<ZoneDirector-IP-
Address>/perf, and email it to the user, or instruct the user to go to http://<ZoneDirector-IP-
Address>/perf to download and install it. After SpeedFlex is installed and running on the client,
click Start again to continue with the wireless performance test (FIG. 56).
Before running SpeedFlex, verify that the Guest Usage and Wireless Client Isolation
options (on the
Configure > WLANs > Editing {WLAN Name}
page) are disabled.
The SpeedFlex Wireless Performance tool may not function properly when either or
both of these options are enabled. For example, SpeedFlex may be inaccessible to
users at http:// {zonedirector-ip-address}/perf or SpeedFlex may prompt you to install
the Speed-Flex application on the target client, even when it is already installed.
The following procedure describes how to run SpeedFlex from the Browser-Based
Configuration Pages to measure a wireless client’s throughput.
If the NXA-WAPZD1000 is unable to determine the IP address of the wireless client
that you want to test (for example, if the wireless client is using a static IP address),
the
SpeedFlex
link for that client does not appear on the
Currently Active Clients
page.
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