Clients Disconnecting

[GRANT3779]

We aeem to have an issue where certain clients (looks only like win7) keep disconnecting from the WIFI. We have APs running in FlexConnect mode and registered to a remote controller. XP clients seem to be ok.

Anyone come across this, or know where to even start troubleshooting?

[Scott Fella]

Make sure you are using only one type of encryption. Either WPA/TKIP or WPA2/AES. Don't have both or a mixture of both. Also take a look at the client driver and make sure they have been upgraded to the latest.

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[GRANT3779]

Hi Scott,

When you say encryption, where do I find these settings?

[Yahya Jaber]

Hi,

WLC GUI>WLAN>Select your SSID>Layer2 security>WPA & WPA2

WPA with TKIP

WPA2 with AES

and make sure to update your driver.

[GRANT3779]

Also in the logs getting the following when clients are disconnected. I don't think it will be security related as it works on other sites which all use the same remote controller / SSIDs. Any ideas?

%DOT1X-3-MAX_EAPOL_KEY_RETRANS: 1x_ptsm.c:444 Max EAPOL-key M1 retransmissions exceeded for client

%DOT1X-3-INVALID_REPLAY_CTR: 1x

[Scott Fella]

What is your encryption your using. Post your show WLAN

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