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Contributor II

CLIENT CONSTANTLY DISCONNECTING FROM WLAN

I have a mac client which is running a windows client parallely. Unfortunately this client experiences regular and frequent disconnections from teh vlan. I did an "auth-tracebuf" and got the results below. What is the meaning of the "station down" and most importantly what can be the cause? Thanks very much in advance.

 

(Master) #show auth-tracebuf count 50

Warning: user-debug is enabled on one or more specific MAC addresses;
         only those MAC addresses appear in the trace buffer.

Auth Trace Buffer
-----------------
                                                                                                                                                                                             
                                                                                                                                                                                             
Jan 27 18:28:59  wpa2-key1             <-  9c:f3:87:ab:22:bc  24:de:c6:1f:03:41                                                                                                               -  117
Jan 27 18:28:59  wpa2-key2             ->  9c:f3:87:ab:22:bc  24:de:c6:1f:03:41                                                                                                               -  117
Jan 27 18:28:59  wpa2-key3             <-  9c:f3:87:ab:22:bc  24:de:c6:1f:03:41                                                                                                               -  151
Jan 27 18:28:59  wpa2-key4             ->  9c:f3:87:ab:22:bc  24:de:c6:1f:03:41                                                                                                               -  95
Jan 27 18:30:48  station-down           *  4c:80:93:16:40:90  9c:1c:12:c1:76:c1                                                                                                               -  -
Jan 27 18:30:59  station-up             *  4c:80:93:16:40:90  9c:1c:12:c1:76:c1                                                                                                               -  -    wpa2 psk aes
Jan 27 18:30:59  wpa2-key1             <-  4c:80:93:16:40:90  9c:1c:12:c1:76:c1                                                                                                               -  117
Jan 27 18:30:59  wpa2-key2             ->  4c:80:93:16:40:90  9c:1c:12:c1:76:c1  -  119
Jan 27 18:30:59  wpa2-key3             <-  4c:80:93:16:40:90  9c:1c:12:c1:76:c1  -  151
Jan 27 18:30:59  wpa2-key4             ->  4c:80:93:16:40:90  9c:1c:12:c1:76:c1  -  95
Jan 27 18:32:58  station-down           *  f8:e0:79:af:ff:2e  9c:1c:12:c1:9c:21  -  -
Jan 27 18:32:58  station-up             *  f8:e0:79:af:ff:2e  9c:1c:12:c1:b4:01  -  -    wpa2 psk aes
Jan 27 18:32:58  wpa2-key1             <-  f8:e0:79:af:ff:2e  9c:1c:12:c1:b4:01  -  117
Jan 27 18:32:58  wpa2-key2             ->  f8:e0:79:af:ff:2e  9c:1c:12:c1:b4:01  -  117
Jan 27 18:32:58  wpa2-key3             <-  f8:e0:79:af:ff:2e  9c:1c:12:c1:b4:01  -  151
Jan 27 18:32:58  wpa2-key4             ->  f8:e0:79:af:ff:2e  9c:1c:12:c1:b4:01  -  95
Jan 27 18:33:47  station-down           *  4c:80:93:16:40:90  9c:1c:12:c1:76:c1  -  -
Jan 27 18:33:57  station-up             *  4c:80:93:16:40:90  9c:1c:12:c1:76:c1  -  -    wpa2 psk aes
Jan 27 18:33:57  wpa2-key1             <-  4c:80:93:16:40:90  9c:1c:12:c1:76:c1  -  117
Jan 27 18:33:57  wpa2-key2             ->  4c:80:93:16:40:90  9c:1c:12:c1:76:c1  -  119
Jan 27 18:33:57  wpa2-key3             <-  4c:80:93:16:40:90  9c:1c:12:c1:76:c1  -  151
Jan 27 18:33:57  wpa2-key4             ->  4c:80:93:16:40:90  9c:1c:12:c1:76:c1  -  95
Jan 27 18:40:56  station-down           *  4c:80:93:16:40:90  9c:1c:12:c1:76:c1  -  -
Jan 27 18:40:57  station-up             *  4c:80:93:16:40:90  9c:1c:12:c1:76:c1  -  -    wpa2 psk aes
Jan 27 18:40:57  wpa2-key1             <-  4c:80:93:16:40:90  9c:1c:12:c1:76:c1  -  117
Jan 27 18:40:58  wpa2-key1             <-  4c:80:93:16:40:90  9c:1c:12:c1:76:c1  -  117
Jan 27 18:40:59  wpa2-key1             <-  4c:80:93:16:40:90  9c:1c:12:c1:76:c1  -  117
Jan 27 18:41:00  station-down           *  4c:80:93:16:40:90  9c:1c:12:c1:76:c1  -  -
Jan 27 18:41:07  station-up             *  4c:80:93:16:40:90  9c:1c:12:c1:76:c1  -  -    wpa2 psk aes
Jan 27 18:41:07  wpa2-key1             <-  4c:80:93:16:40:90  9c:1c:12:c1:76:c1  -  117
Jan 27 18:41:07  wpa2-key2             ->  4c:80:93:16:40:90  9c:1c:12:c1:76:c1  -  119
Jan 27 18:41:07  wpa2-key3             <-  4c:80:93:16:40:90  9c:1c:12:c1:76:c1  -  151
Jan 27 18:41:07  wpa2-key4             ->  4c:80:93:16:40:90  9c:1c:12:c1:76:c1  -  95
Jan 27 18:41:40  station-up             *  4c:80:93:16:40:90  9c:1c:12:c1:76:c1  -  -    wpa2 psk aes
Jan 27 18:41:40  wpa2-key1             <-  4c:80:93:16:40:90  9c:1c:12:c1:76:c1  -  117
Jan 27 18:41:40  wpa2-key2             ->  4c:80:93:16:40:90  9c:1c:12:c1:76:c1  -  119
Jan 27 18:41:40  wpa2-key3             <-  4c:80:93:16:40:90  9c:1c:12:c1:76:c1  -  151
Jan 27 18:41:40  wpa2-key4             ->  4c:80:93:16:40:90  9c:1c:12:c1:76:c1  -  95
Jan 27 18:44:44  station-down           *  f8:e0:79:af:ff:2e  9c:1c:12:c1:b4:01  -  -
Jan 27 18:44:44  station-up             *  f8:e0:79:af:ff:2e  9c:1c:12:c1:74:21  -  -    wpa2 psk aes
Jan 27 18:44:44  wpa2-key1             <-  f8:e0:79:af:ff:2e  9c:1c:12:c1:74:21  -  117
Jan 27 18:44:44  wpa2-key2             ->  f8:e0:79:af:ff:2e  9c:1c:12:c1:74:21  -  117
Jan 27 18:44:44  wpa2-key3             <-  f8:e0:79:af:ff:2e  9c:1c:12:c1:74:21  -  151
Jan 27 18:44:44  wpa2-key4             ->  f8:e0:79:af:ff:2e  9c:1c:12:c1:74:21  -  95
Jan 27 18:47:19  station-down           *  4c:80:93:16:40:90  9c:1c:12:c1:76:c1  -  -
Jan 27 18:47:30  station-up             *  4c:80:93:16:40:90  9c:1c:12:c1:76:c1  -  -    wpa2 psk aes
Jan 27 18:47:30  wpa2-key1             <-  4c:80:93:16:40:90  9c:1c:12:c1:76:c1  -  117
Jan 27 18:47:30  wpa2-key2             ->  4c:80:93:16:40:90  9c:1c:12:c1:76:c1  -  119
Jan 27 18:47:30  wpa2-key3             <-  4c:80:93:16:40:90  9c:1c:12:c1:76:c1  -  151

Guru Elite

Re: CLIENT CONSTANTLY DISCONNECTING FROM WLAN

Are the drivers up to date?


Tim Cappalli | Aruba Security TME
@timcappalli | timcappalli.me | ACMX #367 / ACCX #480
Contributor II

Re: CLIENT CONSTANTLY DISCONNECTING FROM WLAN

yes they are. Is the "Station Down" in the logs normal?

Contributor II

Re: CLIENT CONSTANTLY DISCONNECTING FROM WLAN

With this same client that is running parallels and therefore having connection problems, i was checking through the logs and realised that it has the same mac with 2 different IPs because of the parallel Windows running on the mac. And it keeps switching the IPs for the same MAC address. Can that be the problem and how can i solve this if it is.

 

Please find attached file.

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