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Interface Dot11Radio0, cannot associate: No Response

Posted on 2008-06-17
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Last Modified: 2012-06-27
About 4 months ago, I replace a faulty Cisco Aironet 350 Series Bridges with a Cisco Aironet 1200 Series Access Point as we had it at hand.

We have two building about 60 metres apart and one Cisco Aironet 350 Series Bridges in the root and the Cisco Aironet 1200 Series Access Point is setup as a workbridge. Both are using outside external antennas. Over the weekend the 1200 stopping working getting an error.

Interface Dot11Radio0, cannot associate: No Response

This interface is showing as disabled.

I tested the AP1200 and if I make it an ordinary access point with short internal antennas it is working fine so I suspect something else is the issue.

Up until the weekend, this was working fine for 4 months without any issues and nothing had changed.

Could the issue be with the external antenna or the cable between the antenna and the AP be an issue.

The root Cisco Aironet 350 Series Bridges seems to be fine.

Any troubleshooting ideas would be welcome.
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Question by:JohnRy903
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Johnjces earned 2000 total points
ID: 21803623
Did it rain recently at your location?

I had a similar problem with a different make of AP, and it turned out to be moisture inside the alleged waterproof and O ring sealed connections to the outdoor access points!

That moisture brought us to a standstill so might be worth checking especially after a heavy rain or cool to warm temperatures with a high humidity.

Undo all of your antenna connections and check the cable itself for cracks, weathering etc. Blow them (the connections) out well and retry.

Might be a solution.

John
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by:Johnjces
ID: 21803671
PS. If you have a volt ohm meter, check continuity between center conductor and center conductor and between outside shield and outside shield. Make sure there is no short between center conductor and shield.

Most antennas will show no short, but there are some I know of (different frequencies usually and much lower in frequency) that will show an almost DC short so make sure your antenna is disconnected first.

John
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by:Johnjces
ID: 21869993
Any progress?
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Author Closing Comment

by:JohnRy903
ID: 31467911
Problem is corrosion of the antenna, in the process of replacing today
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