I'have been facing a problem of lost of connectivit at ethernet interface.
I'm using 2 Aironet 1310 as bridge between 2 buildings. The wireless configuration is OK.
It is an intermmitent problem. Sometimes all computers at the remote building lost the connectivit with the main building (DHCP, Internet) and we can't ping the remote Radio. Neither of the remote building where it are fixed.
But at the main building when I open the Radio web page, the event log show me that the radio interface is up and associated with other radio.
I'don know if is a hardware problem, when I do "sh interfaces" it's seens that all is ok.
FYI, the connections where the coax is attached to the radio can give you a lot of problems if it is not sealed perfectly. The radio installation kit comes with sealant tape, I assume your coax was sealed. If not, you may have some water in the connection or in the coax end. I have had to replace both coax and radio once that happens; however, my environment was worse than most. You may end up having to replace the radio. That is what I had to do more than once when this starts happening.
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
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