A couple of months ago, I installed three Aironet 350 Bridges, each connected to directional antenna via LMR400 cable. The directionals are pointed towards an access point at the front of the campus. After abou 36-48 hours of use, the ethernet ports on the bridges locks up, and actually dies in two of the instances. I figured that it was a bad group of bridges, so we replaced them with three more, only to have two of the replacements do the exact same thing. When the port crashes, the red light comes on and stays on, even after you remove the rj45 connector. Afterwards, you are unable to access the bridge via a browser, so there is little means of troubleshooting available. I haven't had a lot of luck with the reseller, and this customer has been down since March!!
Aside from on-site consulting (possibly on a contingency basis), I can only suggest that you pull it all into a lab, check all the configs, upgrade all the firmware and confirm that it's reliable before putting it back in.
Transferring Crash file from standby: Login to the Active WLC in HA.
From CLI: (Cisco Controller) >transfer upload datatype crash (Cisco
Controller) >transfer upload filename (Cisco
Controller) >transfer upload mode tftp (Cisco Controller) >transfer
This is the start of a display filter cross reference between Wireshark
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