Aironet 1140 not connecting to network when on PoE
If the WAP is powered using an Avocent switch users are able to JOIN the WAP but can't access the network? CORRECT
If the WAP is powered using a Power Injector, users are able to join the WAP but can't access the network. CORRECT
If the WAP is powered using a power supply, users are able to join the WAP and can access the network. CORRECT
I have a stupid feeling in my stomach I know what this is all about. Power injectors and PoE power the WAP using the 3rd pair in an ethernet cable. However, the first and second pair are the important bits as well. If either (or both) pairs A and B are not terminated properly, the WAP powers up and that's about it.
I know you've said you've replace the cable but I can assure you this bit of information unsettles me. This is because I've deployed over 1000 WAPs, using PoE and injectors, which means I also took hold of > 3000 patch cables direct from the manufacturer. Let me tell you that I have around 9% failure rates of these cables.
How do I know? It's because the switches I've deployed, Cisco 3750 and 2960/2960S, have TDR and I've tested cables which are giving me issues.
My recommendation is this: Get the cables tested by a reputable TDR tester like a Fluke DTX1800. Alternatively, if you have a Cisco 3560G/E/X or 3750G/E/X or 2960G/S then you can do that also.
Just want to give you a warning that some so-called TDR machines will only test the first two pairs of cables and will not be able to test all four pairs.
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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