A few months back I had to troubleshoot a wireless issue that was about a thousand miles away. Luckily I have at my disposal two fantastic tools for such troubleshooting scenarios.
Both tools allow me to utilize a Cisco Access Point remotely (Chanalyzer requiring a CleanAir capable AP) in order to troubleshoot wireless issues from a L1 and L2 perspective. So here is a quick blog on how to use both tools.
Nolans Wireless Blog 