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ptk update fail

Posted on 2011-02-25
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Last Modified: 2012-05-11
I have Cisco WAP4410N wireless access point I' getting this message every day in the log

hostapd: ptk update fail

Is anyone know what does it mean?
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Question by:Yadtrt
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by:kemi67
ID: 34986288
PTK is related to the authentication protocol, see here
http://en.wikipedia.org/wiki/IEEE_802.11i-2004

Do you have  connection with some devices, for example mobile phones?

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by:kemi67
ID: 34986292
I meant "do you have connection problem with some devices"
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by:Yadtrt
ID: 35014903
Noi dont have connection to mobilephone.
Still I dont understand what does it mean? do I have real problem
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Accepted Solution

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kemi67 earned 500 total points
ID: 35015037
PTK is part of the process of a wireless client authentication
hostapd: ptk update fail,  means that there was a problem in such authentication process.

You have a real problem if you see that your connections drop, but if this is a random message, you can ignore this.
It is hard to discover who is causing that. Try to discover the exact time when it happens: while a client start up, or every day at the same our, or when you connect a new device.

It could be or not a problem: if you notice faulty wireless connection, this message is a warning, otherwise it is not a problem
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