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I am having really strange issue from last few days with my network, whenever I try connecting iMac with Windows 7 64bit system to WiFi network it disconnects WiFi connectivity on all other machine.

Here is list of steps I followed,

  • Reset Modem
  • Reset Router (Apple Airport Extreme)
  • I have 30 x iMacs connected to network (20 with Ethernet, 10 with WiFi)
  • I have created new image with Win 7 & Mac OS Dual boot with Adobe CS5, Adobe CS6, Adobe CC, TeamViewer & Deep Freeze
  • Connecting Mac OS to router with WiFi works fine
  • Connecting Win 7 to router with WiFi disables Internet on all other devices connected using WiFi

I am not really sure what is causing this issue??

I am using Apple Airport Extreme so I have am not able to get logs for the router.

Below is the logs from my router when I connect WiFi,

Sep 18 07:17:06 Severity:5 Rotated CCMP group key.

Sep 18 07:31:13 Severity:5 Associated with station 18:87:96:82:e2:3c

Sep 18 07:31:13 Severity:5 Installed unicast CCMP key for supplicant 18:87:96:82:e2:3c

Sep 18 07:32:05 Severity:5 Associated with station b8:78:2e:a8:a3:15

Sep 18 07:32:05 Severity:5 Installed unicast CCMP key for supplicant b8:78:2e:a8:a3:15

Sep 18 07:33:00 Severity:5 Disassociated with station 18:87:96:82:e2:3c

Sep 18 07:33:01 Severity:5 Rotated CCMP group key.

Sep 18 07:33:02 Severity:5 Associated with station 18:87:96:82:e2:3c

Sep 18 07:33:04 Severity:5 Installed unicast CCMP key for supplicant 18:87:96:82:e2:3c

Sep 18 07:35:59 Severity:5 Associated with station 18:87:96:82:e2:3c

Sep 18 07:35:59 Severity:5 Installed unicast CCMP key for supplicant 18:87:96:82:e2:3c

Sep 18 07:36:28 Severity:5 Disassociated with station 18:87:96:82:e2:3c

Sep 18 07:36:29 Severity:5 Rotated CCMP group key.

Sep 18 07:37:14 Severity:5 Associated with station 18:87:96:82:e2:3c

Sep 18 07:37:14 Severity:5 Installed unicast CCMP key for supplicant 18:87:96:82:e2:3c

Sep 18 07:37:55 Severity:5 Idle timeout for station b8:78:2e:a8:a3:15

Sep 18 07:37:55 Severity:5 Disassociating with station b8:78:2e:a8:a3:15 (reserved 4).

Sep 18 07:37:55 Severity:5 Disassociated with station b8:78:2e:a8:a3:15

Sep 18 07:37:55 Severity:5 Rotated CCMP group key.

Sep 18 07:38:31 Severity:5 Associated with station 7c:c3:a1:b7:1d:4d

Sep 18 07:38:31 Severity:5 Installed unicast CCMP key for supplicant 7c:c3:a1:b7:1d:4d

Sep 18 07:38:54 Severity:5 Associated with station 7c:c3:a1:b7:16:fc

Sep 18 07:38:54 Severity:5 Installed unicast CCMP key for supplicant 7c:c3:a1:b7:16:fc

Sep 18 07:38:59 Severity:5 Associated with station b8:78:2e:a8:a3:15

Sep 18 07:38:59 Severity:5 Installed unicast CCMP key for supplicant b8:78:2e:a8:a3:15

Sep 18 07:39:02 Severity:5 Associated with station 7c:c3:a1:b7:18:22

Sep 18 07:39:02 Severity:5 Installed unicast CCMP key for supplicant 7c:c3:a1:b7:18:22

Sep 18 07:39:03 Severity:5 Associated with station d8:30:62:49:1d:9b

Sep 18 07:39:03 Severity:5 Installed unicast CCMP key for supplicant d8:30:62:49:1d:9b

Sep 18 07:39:08 Severity:5 Associated with station e4:ce:8f:57:d0:9c

Sep 18 07:39:08 Severity:5 Installed unicast CCMP key for supplicant e4:ce:8f:57:d0:9c

Sep 18 07:39:10 Severity:5 Associated with station 7c:c3:a1:b7:16:f2

Sep 18 07:39:10 Severity:5 Installed unicast CCMP key for supplicant 7c:c3:a1:b7:16:f2

Sep 18 07:39:10 Severity:5 Associated with station 7c:c3:a1:b6:c1:2b

Sep 18 07:39:10 Severity:5 Installed unicast CCMP key for supplicant 7c:c3:a1:b6:c1:2b

Sep 18 07:39:12 Severity:5 Associated with station 7c:c3:a1:b7:16:fa

Sep 18 07:39:12 Severity:5 Installed unicast CCMP key for supplicant 7c:c3:a1:b7:16:fa

Sep 18 07:39:17 Severity:5 Associated with station 7c:c3:a1:b7:17:98

Sep 18 07:39:17 Severity:5 Installed unicast CCMP key for supplicant 7c:c3:a1:b7:17:98

Sep 18 07:39:18 Severity:5 Associated with station 7c:c3:a1:b7:16:f3

Sep 18 07:39:18 Severity:5 Installed unicast CCMP key for supplicant 7c:c3:a1:b7:16:f3

Sep 18 07:40:13 Severity:5 Associated with station e4:ce:8f:5d:47:f5

Sep 18 07:40:13 Severity:5 Installed unicast CCMP key for supplicant e4:ce:8f:5d:47:f5

Sep 18 07:41:16 Severity:5 Associated with station 7c:c3:a1:b7:18:22

Sep 18 07:41:16 Severity:5 Installed unicast CCMP key for supplicant 7c:c3:a1:b7:18:22

Sep 18 07:45:01 Severity:5 Associated with station 7c:c3:a1:b7:1c:a7

Sep 18 07:45:01 Severity:5 Installed unicast CCMP key for supplicant 7c:c3:a1:b7:1c:a7

Sep 18 07:46:15 Severity:5 Disassociated with station 7c:c3:a1:b7:1c:a7

Sep 18 07:46:19 Severity:5 Rotated CCMP group key.

Sep 18 07:46:19 Severity:5 Deauthenticating with station 7c:c3:a1:b6:c1:2b (reserved 2).

Sep 18 07:46:19 Severity:5 Disassociated with station 7c:c3:a1:b6:c1:2b

Sep 18 07:46:24 Severity:5 Associated with station 7c:c3:a1:b6:c1:2b

Sep 18 07:46:24 Severity:5 Installed unicast CCMP key for supplicant 7c:c3:a1:b6:c1:2b

Sep 18 07:46:24 Severity:5 Rotated CCMP group key.

Sep 18 07:46:24 Severity:5 Deauthenticating with station 7c:c3:a1:b7:16:f3 (reserved 2).

Sep 18 07:46:24 Severity:5 Disassociated with station 7c:c3:a1:b7:16:f3

Sep 18 07:46:24 Severity:5 Associated with station 7c:c3:a1:b7:16:f3

Sep 18 07:46:24 Severity:5 Installed unicast CCMP key for supplicant 7c:c3:a1:b7:16:f3

Sep 18 07:46:25 Severity:5 Rotated CCMP group key.

Sep 18 07:46:34 Severity:5 Disassociated with station 7c:c3:a1:b6:c1:2b

Sep 18 07:46:34 Severity:5 Associated with station 7c:c3:a1:b6:c1:2b

Sep 18 07:46:34 Severity:5 Installed unicast CCMP key for supplicant 7c:c3:a1:b6:c1:2b

Sep 18 07:46:35 Severity:5 Rotated CCMP group key.

Sep 18 07:48:51 Severity:5 Connection accepted from Sep 18 07:48:53 Severity:5 Connection accepted from Sep 18 07:48:53 Severity:5 Connection accepted from

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Welcome to Superuser, could you please specify what your question is and denote it with a question mark. Is their any way to capture logs from your router? –  50-3 Sep 17 '13 at 4:54
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