Can you recommend some useful tools for Wi-Fi debugging?

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cross mob
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Anonymous
Not applicable
We recommend using a USB wireless sniffer from one of the following vendors.

AirPCAP Nx -- works with Wireshark

Good, well-priced, easy-to-use network network analyser

http://www.riverbed.com/us/products/cascade/wireshark_enhancements/airpcap.php

http://www.wireshark.org   [Win32 v1.4.14 is stable and works well]

All versions downloadable here: http://wiresharkdownloads.riverbed.com/wireshark/win32/all-versions/

Omnipeek

Full featured network analyser

http://www.wildpackets.com/products/network_analysis_and_monitoring/omnipeek_network_analyzer

AirMagnet

Full featured network analyser

http://www.flukenetworks.com/enterprise-network/wlan-security-and-analysis

Microsoft Network Monitor 3

A free tool which uses the Wi-Fi card in the laptop/PC.  

http://support.microsoft.com/kb/933741
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Anonymous
Not applicable
For doing analysis of the RF/WiFi environment, the following tools are useful:

WiSpy - PC dongle to do 2.4GHz and 5GHz spectrum capture.  Can show 802.11 and non-802.11 interference.

http://www.metageek.net/products/wi-spy/

inSSIDer - Free scanning tool to show other 802.11 networks within range.

http://www.metageek.net/products/inssider/

http://www.metageek.net/products/inssider/

Basic network scans are also available using the wireless utility in your PC or Mac.
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Anonymous
Not applicable
Also for RF/WiFi environments if you have an iPad/iPhone/iPod Touch

WiPry - iPhone/iPad/iPod Touch dongle for 2.4GHz analysis

http://www.oscium.com/products/wipry-combo-spectrum-analyzer-and-dynamic-power-meter

The power meter function is quite handy if you want to make duty cycle measurements or measure actual TX times.
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Anonymous
Not applicable
Update on Wireshark:

The latest version of Wireshark (1.8.8 and later) now works out of the box when decoding packets with WPA/WPA2 security.
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