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Occasional Contributor II

bouncing WPA2 with message about key message not matching replay counter

Hi there!

 

I have a location that has 2 AP93's in RAP mode. The signal seems to drop out long enough for the devices to disconnect. When running aruba-utils on the Android based device, the signal dips to -85DB for two polls and then it disconnects. I did a show log all | include <mac> and I got this message. 

Mar  5 16:22:08  authmgr[10049]: <132093> <ERRS> |authmgr|  WPA2 Key message 2 from Station x y z did not match the replay counter 07 vs 08.

Device is stationary, goes from -50 to -85, and when it finally connects back to the AP, it goes right back up to -50.

 

This is causing problems because the people at the location cannot use the device.

 

Please and thanks.

Guru Elite

Re: bouncing WPA2 with message about key message not matching replay counter

That message in this context would indicate RF interference.  I am assuming the device is using the 2.4ghz band?


*Answers and views expressed by me on this forum are my own and not necessarily the position of Aruba Networks or Hewlett Packard Enterprise.*
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Occasional Contributor II

Re: bouncing WPA2 with message about key message not matching replay counter

So using the arubautilities app on the device supports the conclusion that there is a lot of interference from other networks on the channels. I tried forcing it to my own domain profile which isolated it to the most open channel pair i could find in that area (6-10) and even that has the same effect. I am going to upgrade these AP93's to AP105's to see if the better radios help (this has often been the solution to this problem in the past). I disabled the profile and I can see that it looks like it drops every time it changes channels trying to find a clear space. The screenshot below is one showing it on the 6-10 channel.

 

image.png

Guru Elite

Re: bouncing WPA2 with message about key message not matching replay counter

Android devices that monitor the wifi can show dropouts when there are collisions, especially when that device is connected to the wifi itself.  You should use a secondary device (non-android) to corroborate what you are seeing.


*Answers and views expressed by me on this forum are my own and not necessarily the position of Aruba Networks or Hewlett Packard Enterprise.*
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