Syslog errors on Wireless..

Folks - I am trying to determine if the huge amount of client side errors I see in our logs is normal.  We setup WCS a couple of years ago, and I have been having a constant battle with trying to resolve alot of, what appear to me, client side errors.  I have tried tweaking the controllers logging, but my syslog still gets hundreds of messages like those below -  So, I am just curious - is this normal, or do I have a much much bigger issue?
2011-06-15 00:00:30
Local0.Error
10.1.1.151
WISM1: *dot1xMsgTask: Jun 15 00:00:30.306: %DOT1X-3-MAX_EAPOL_KEY_RETRANS: 1x_ptsm.c:407 Max EAPOL-key M5 retransmissions exceeded for client 00:23:15:47:54:28
2011-06-15 00:01:57
Local0.Error
10.1.1.151
WISM1: *dot1xMsgTask: Jun 15 00:01:57.906: %DOT1X-3-MAX_EAPOL_KEY_RETRANS: 1x_ptsm.c:407 Max EAPOL-key M3 retransmissions exceeded for client 00:23:4d:3e:6c:9b
2011-06-15 00:03:27
Local0.Error
10.1.1.151
WISM1: *dot1xMsgTask: Jun 15 00:03:27.708: %DOT1X-3-MAX_EAP_RETRIES: 1x_auth_pae.c:2914 Max EAP identity request retries (21) exceeded for client 00:24:d6:1d:55:b2
2011-06-15 00:03:54
Local0.Error
10.1.1.151
WISM1: *Dot1x_NW_MsgTask_0: Jun 15 00:03:55.061: %DOT1X-3-INVALID_WPA_KEY_MSG_STATE: 1x_eapkey.c:708 Received invalid EAPOL-key M2 msg in START state - invalid secure bit; len 24, key type 1, client 00:23:15:62:7b:14
2011-06-15 00:05:15
Local0.Error
10.1.1.151
WISM1: *Dot1x_NW_MsgTask_0: Jun 15 00:05:15.139: %DOT1X-3-INVALID_WPA_KEY_MSG_STATE: 1x_eapkey.c:708 Received invalid EAPOL-key M2 msg in START state - invalid secure bit; len 24, key type 1, client 00:23:15:61:e6:28
2011-06-15 00:05:15
Local0.Error
10.1.1.151
WISM1: *Dot1x_NW_MsgTask_0: Jun 15 00:05:15.139: %LOG-3-Q_IND: 1x_eapkey.c:708 Received invalid EAPOL-key M2 msg in START state - invalid secure bit; len 24, key type 1, client 00:23:15:62:7b:14
2011-06-15 00:06:50
Local0.Error
10.1.1.151
WISM1: *Dot1x_NW_MsgTask_0: Jun 15 00:06:50.230: %DOT1X-3-INVALID_WPA_KEY_MSG_STATE: 1x_eapkey.c:708 Received invalid EAPOL-key M2 msg in START state - invalid secure bit; len 40, key type 1, client 00:23:15:62:74:1c
2011-06-15 00:06:50
Local0.Error
10.1.1.151
WISM1: *Dot1x_NW_MsgTask_0: Jun 15 00:06:50.230: %LOG-3-Q_IND: 1x_eapkey.c:708 Received invalid EAPOL-key M2 msg in START state - invalid secure bit; len 24, key type 1, client 00:23:15:61:e6:28
2011-06-15 00:06:50
Local0.Error
10.1.1.151
WISM1: *Dot1x_NW_MsgTask_0: Jun 15 00:06:50.235: %DOT1X-3-INVALID_WPA_KEY_MSG_STATE: 1x_eapkey.c:708 Received invalid EAPOL-key M2 msg in START state - invalid secure bit; len 40, key type 1, client 00:23:15:62:72:38
2011-06-15 00:06:51
Local0.Error
10.1.1.151
WISM1: *Dot1x_NW_MsgTask_0: Jun 15 00:06:51.112: %DOT1X-3-INVALID_WPA_KEY_MSG_STATE: 1x_eapkey.c:708 Received invalid EAPOL-key M2 msg in START state - invalid secure bit; len 40, key type 1, client 00:23:15:62:74:1c
2011-06-15 00:06:51
Local0.Error
10.1.1.151
WISM1: *Dot1x_NW_MsgTask_0: Jun 15 00:06:51.131: %DOT1X-3-INVALID_WPA_KEY_MSG_STATE: 1x_eapkey.c:708 Received invalid EAPOL-key M2 msg in START state - invalid secure bit; len 40, key type 1, client 00:23:15:62:72:38
2011-06-15 00:08:33
Local0.Error
10.1.1.151
WISM1: *Dot1x_NW_MsgTask_0: Jun 15 00:08:33.329: %DOT1X-3-INVALID_WPA_KEY_MSG_STATE: 1x_eapkey.c:708 Received invalid EAPOL-key M2 msg in START state - invalid secure bit; len 24, key type 1, client 00:24:d6:1d:5d:1e
2011-06-15 00:09:30
Local0.Error
10.1.1.151
WISM1: *dot1xMsgTask: Jun 15 00:09:30.513: %LOG-3-Q_IND: 1x_eapkey.c:708 Received invalid EAPOL-key M2 msg in START state - invalid secure bit; len 24, key type 1, client 00:24:d6:1d:5d:1e
2011-06-15 00:09:30
Local0.Error
10.1.1.151
WISM1: *dot1xMsgTask: Jun 15 00:09:30.513: %DOT1X-3-MAX_EAPOL_KEY_RETRANS: 1x_ptsm.c:407 Max EAPOL-key M3 retransmissions exceeded for client 00:23:4d:3e:6f:39

This is roaming breaking because of possibly :
-bad coverage between APs
-interference/high load
Little you can do from a config perspective apart from analyzing where those happen and see if they are indeed related to coverage or whatsoever

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