Ruckus Wireless ZoneDirector 3000, User Manual, Page: 399 / 430

Diagnosing Poor Network Performance
Allowing Users to Measure Their Own Wireless Throughput
ZoneDirector 9.8 User Guide, 800-70599-001 Rev B
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This indicates that SpeedFlex was successfully started. Keep the command
prompt window open.
7 On the SpeedFlex Wireless Performance Test interface, click the Start button
again. A progress bar appears below the speedometer as the tool generates
traffic to measure the downlink throughput from the AP to the client. The test
typically runs from 10 to 30 seconds.
When the test is complete, the results appear below the Start button. Information
that is shown includes the downlink throughput (in Mbps) between your wireless
device and the AP, as well as the packet loss percentage during the test.
If the packet loss percentage is high (which indicates poor wireless connection), try
moving your wireless device to another location, and then run the tool again.
Alternatively, contact your network administrator for assistance.
Diagnosing Poor Network Performance
You can try the following diagnostic and troubleshooting techniques to resolve poor
network performance.
1 Go to Monitor > Map View .
2 Look on the map for rogue APs. If there is a large number, and they belong to
neighboring networks, proceed to the next task.
3 Go to Configure > Access Points .
4 Edit each AP record to assign each device a channel that will not interfere with
other nearby APs.
For example, if you have three APs operating in the 2.4 GHz band, you can manually
set each one to a different non-overlapping channel by selecting channel “1”, “6”
and “11” from the Channel drop-down list.
Starting a Radio Frequency Scan
This task complements the automatic RF scanning feature that is built into the
Ruckus ZoneDirector. That automatic scan assesses one radio frequency at a time,
every 20 seconds or so. To manually start a complete radio frequency scan that
assesses all possible frequencies in all devices at one time, follow these steps:
1 Go to Administer > Diagnostics .
2 When the Diagnostics page appears, look for the Manual Scan options, and then
click Scan .