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Airports using PoE stop responding after a few days.

361 Views 3 Replies Latest reply: Jan 31, 2006 6:45 AM by JohnDCCIU RSS
Alex Bottinelli Calculating status...
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Jan 23, 2006 7:33 AM
We have several Airport Extreme Base Stations distributed throughout the district and connected to Cisco Catalyst 3560 PoE switches. These switches are providing power to our Base Stations via their PoE capabilities. The problem we're having is that after a while, these base stations will stop responding and drop off my network such that I can no longer ping them and people in the areas can no longer use them for connectivity. The way I've been able to correct this issue, so far, is to instruct the switches to remove power from the interfaces the base stations are connected to, and then reapply power. The base stations, effectively, reboot themselves and all is well for the time being.

Naturally, I don't want to keep having to reboot these base stations every time they stop responding. Does anyone have any ideas on how I could fix this issue?

Thank you.

Alex Bottinelli
Jenks Public Schools
Jenks, OK
Airport Extreme, Mac OS X (10.4.4), Firmware 5.5.1, 5.6, and 5.7
  • JohnDCCIU Level 1 Level 1 (10 points)

    We had similar huge problems with a large AirPort installation over two separate schools (abou 100 total). We tracked it down to newer AirPort Base Station firmware: anything later than 5.5.1 (including the new 5.7) will eventually cause the AirPort Base Station to go unresponsive. High traffic or a large number of workstations connected to the base station make the problem happen faster.

    We solved this problem completely by reverting to v5.5.1 firmware everywhere. They've all been rock solid since.

    We tested v5.7 firmware when it came out, but it exhibited the same problem.

    Apple is aware of the problem at the highest levels of engineering and is supposedly working on a fix. Here's hoping for v5.8...

    Various   Mac OS X (10.4.4)  
  • JohnDCCIU Level 1 Level 1 (10 points)
    Incidentially, it does not
    seem to matter if the Base Station Extreme is on PoE
    or not. Just today, the base station went down and I
    have it connected via a power adapter.

    You're right: the problem is independent of the power source. We had both POE and standard base stations, and they all exhibited the same problem. It's triggered by traffic: the more traffic you get, the more likely the base station will go unreponsive until it's power-cycled.

    Various   Mac OS X (10.4.4)  


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