WAP371 clients constantly disconnecting/reconnecting

I have a new WAP371 with firmware 1.1.2.3. It's installed on an interior wall on the second floor of my three-floor house. It receives power over Ethernet from an SG200-08P switch. Each radio has a separate SSID. WPA-Personal is used on both. All traffic is in untagged VLAN 1.
Clients are will not stay connected for longer than a minute or two. The log shows an association, then after usually one or two minutes, the log shows a deauth with the message "Disassociated due to inactivity." Then the very next item in the log is another association from the client. This will persist for a minute or two, and then the cycle repeats, continually and forever. This happens even when there is activity, so "Disassociated due to inactivity" seems wrong.
Following various bits of advice here, I've tried:
various fixed frequencies
all bandwidth options
short guard interval yes and no
protection auto and off
frame burst on and off
fixed multicast rate auto and 54
removed 1 and 2 from legacy rate sets on the 2.4 GHz radio
set broadcast key refresh rate to 0
disabled TSPEC, scheduler, bandwidth utilization, client QoS, Green Ethernet
I'm at a loss to figure out how to fix this. It causes activity on the clients to sputter -- I'm seeing a fair number of retransmissions. Occasionally application connections, like streaming video, will reset. Help please?

My name Eric Moyers. I am an Engineer in the Small Business Support Center.
I am sorry to hear that you are experiencing this issue.
I feel that this is an issue that will be difficult to effectively troubleshoot through chatting on the forums. You will get better results for something this complicated by opening a case with one of our engineers directly.
Please call our support center and open a case so that one of them can work directly with you.
http://www.cisco.com/c/en/us/support/web/tsd-cisco-small-business-support-center-contacts.html
If you like you can repost the case number here and I can check in on your case as well.
Eric Moyers
.:|:.:|:. CISCO | Cisco Presales Technical Support | Wireless Subject Matter Expert
Please rate helpful Posts and Let others know when your Question has been answered.

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*apfMsConnTask_5: Jan 29 11:57:51.013: 6c:88:14:f5:38:18 0.0.0.0 START (0) Change state to AUTHCHECK (2) last state START (0)
*apfMsConnTask_5: Jan 29 11:57:51.013: 6c:88:14:f5:38:18 0.0.0.0 AUTHCHECK (2) Change state to L2AUTHCOMPLETE (4) last state AUTHCHECK (2)
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*apfMsConnTask_5: Jan 29 11:57:51.013: 6c:88:14:f5:38:18 Not Using WMM Compliance code qosCap 00
*apfMsConnTask_5: Jan 29 11:57:51.013: 6c:88:14:f5:38:18 0.0.0.0 L2AUTHCOMPLETE (4) Plumbed mobile LWAPP rule on AP b4:14:89:d1:d5:c0 vapId 4 apVapId 4 flex-acl-name:
*apfMsConnTask_5: Jan 29 11:57:51.013: 6c:88:14:f5:38:18 0.0.0.0 L2AUTHCOMPLETE (4) Change state to DHCP_REQD (7) last state L2AUTHCOMPLETE (4)
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IPv4 ACL ID = 255, IPv
*apfReceiveTask: Jan 29 11:57:51.014: 6c:88:14:f5:38:18 0.0.0.0 DHCP_REQD (7) Fast Path rule (contd...) 802.1P = 0, DSCP = 0, TokenID = 15206 Local Bridging Vlan = 480, Local Bridging intf id = 21
*apfReceiveTask: Jan 29 11:57:51.014: 6c:88:14:f5:38:18 0.0.0.0 DHCP_REQD (7) Successfully plumbed mobile rule (IPv4 ACL ID 255, IPv6 ACL ID 255, L2 ACL ID 255)
*pemReceiveTask: Jan 29 11:57:51.014: 6c:88:14:f5:38:18 0.0.0.0 Added NPU entry of type 9, dtlFlags 0x0
*pemReceiveTask: Jan 29 11:57:51.014: 6c:88:14:f5:38:18 Sent an XID frame
*IPv6_Msg_Task: Jan 29 11:57:51.014: 6c:88:14:f5:38:18 Pushing IPv6 Vlan Intf ID 21: fe80:0000:0000:0000:45a0:6c41:35d9:f6a3 , and MAC: 6C:88:14:F5:38:18 , Binding to Data Plane. SUCCESS !! dhcpv6bitmap 0
*IPv6_Msg_Task: Jan 29 11:57:51.015: 6c:88:14:f5:38:18 Link Local address fe80::45a0:6c41:35d9:f6a3 updated to mscb. Not Advancing pem state.Current state: mscb in apfMsMmInitial mobility state and client state APF_MS_STATE_A
*apfMsConnTask_5: Jan 29 11:57:51.721: 6c:88:14:f5:38:18 Association received from mobile on BSSID b4:14:89:d1:d5:c3
*apfMsConnTask_5: Jan 29 11:57:51.721: 6c:88:14:f5:38:18 Global 200 Clients are allowed to AP radio
*apfMsConnTask_5: Jan 29 11:57:51.721: 6c:88:14:f5:38:18 Max Client Trap Threshold: 0 cur: 13
*apfMsConnTask_5: Jan 29 11:57:51.721: 6c:88:14:f5:38:18 Rf profile 600 Clients are allowed to AP wlan
*apfMsConnTask_5: Jan 29 11:57:51.721: 6c:88:14:f5:38:18 override for default ap group, marking intgrp NULL
*apfMsConnTask_5: Jan 29 11:57:51.721: 6c:88:14:f5:38:18 Applying Interface policy on Mobile, role Local. Ms NAC State 2 Quarantine Vlan 0 Access Vlan 480
*apfMsConnTask_5: Jan 29 11:57:51.722: 6c:88:14:f5:38:18 Re-applying interface policy for client
*apfMsConnTask_5: Jan 29 11:57:51.722: 6c:88:14:f5:38:18 0.0.0.0 DHCP_REQD (7) Changing IPv4 ACL 'none' (ACL ID 255) ===> 'none' (ACL ID 255) --- (caller apf_policy.c:2219)
*apfMsConnTask_5: Jan 29 11:57:51.722: 6c:88:14:f5:38:18 0.0.0.0 DHCP_REQD (7) Changing IPv6 ACL 'none' (ACL ID 255) ===> 'none' (ACL ID 255) --- (caller apf_policy.c:2240)
*apfMsConnTask_5: Jan 29 11:57:51.722: 6c:88:14:f5:38:18 apfApplyWlanPolicy: Apply WLAN Policy over PMIPv6 Client Mobility Type
*apfMsConnTask_5: Jan 29 11:57:51.722: 6c:88:14:f5:38:18 In processSsidIE:4796 setting Central switched to TRUE
*apfMsConnTask_5: Jan 29 11:57:51.722: 6c:88:14:f5:38:18 In processSsidIE:4799 apVapId = 4 and Split Acl Id = 65535
*apfMsConnTask_5: Jan 29 11:57:51.722: 6c:88:14:f5:38:18 Applying site-specific Local Bridging override for station 6c:88:14:f5:38:18 - vapId 4, site 'MeetingRooms', interface 'guests-internet'
*apfMsConnTask_5: Jan 29 11:57:51.722: 6c:88:14:f5:38:18 Applying Local Bridging Interface Policy for station 6c:88:14:f5:38:18 - vlan 480, interface id 21, interface 'guests-internet'
*apfMsConnTask_5: Jan 29 11:57:51.722: 6c:88:14:f5:38:18 override from ap group, removing intf group from mscb
*apfMsConnTask_5: Jan 29 11:57:51.722: 6c:88:14:f5:38:18 Applying site-specific override for station 6c:88:14:f5:38:18 - vapId 4, site 'MeetingRooms', interface 'guests-internet'
*apfMsConnTask_5: Jan 29 11:57:51.722: 6c:88:14:f5:38:18 Applying Interface policy on Mobile, role Local. Ms NAC State 2 Quarantine Vlan 0 Access Vlan 480
*apfMsConnTask_5: Jan 29 11:57:51.722: 6c:88:14:f5:38:18 Re-applying interface policy for client
*apfMsConnTask_5: Jan 29 11:57:51.722: 6c:88:14:f5:38:18 0.0.0.0 DHCP_REQD (7) Changing IPv4 ACL 'none' (ACL ID 255) ===> 'none' (ACL ID 255) --- (caller apf_policy.c:2219)
*apfMsConnTask_5: Jan 29 11:57:51.722: 6c:88:14:f5:38:18 0.0.0.0 DHCP_REQD (7) Changing IPv6 ACL 'none' (ACL ID 255) ===> 'none' (ACL ID 255) --- (caller apf_policy.c:2240)
*apfMsConnTask_5: Jan 29 11:57:51.722: 6c:88:14:f5:38:18 processSsidIE statusCode is 0 and status is 0
*apfMsConnTask_5: Jan 29 11:57:51.722: 6c:88:14:f5:38:18 processSsidIE ssid_done_flag is 0 finish_flag is 0
*apfMsConnTask_5: Jan 29 11:57:51.722: 6c:88:14:f5:38:18 STA - rates (6): 24 36 176 72 96 108 0 0 0 0 0 0 0 0 0 0
*apfMsConnTask_5: Jan 29 11:57:51.722: 6c:88:14:f5:38:18 suppRates statusCode is 0 and gotSuppRatesElement is 1
*apfMsConnTask_5: Jan 29 11:57:51.722: 6c:88:14:f5:38:18 apfMs1xStateDec
*apfMsConnTask_5: Jan 29 11:57:51.722: 6c:88:14:f5:38:18 0.0.0.0 DHCP_REQD (7) Change state to START (0) last state DHCP_REQD (7)
*apfMsConnTask_5: Jan 29 11:57:51.722: 6c:88:14:f5:38:18 pemApfAddMobileStation2: APF_MS_PEM_WAIT_L2_AUTH_COMPLETE = 0.
*apfMsConnTask_5: Jan 29 11:57:51.722: 6c:88:14:f5:38:18 0.0.0.0 START (0) Initializing policy
*apfMsConnTask_5: Jan 29 11:57:51.723: 6c:88:14:f5:38:18 0.0.0.0 START (0) Change state to AUTHCHECK (2) last state START (0)
*apfMsConnTask_5: Jan 29 11:57:51.723: 6c:88:14:f5:38:18 0.0.0.0 AUTHCHECK (2) Change state to L2AUTHCOMPLETE (4) last state AUTHCHECK (2)
*pemReceiveTask: Jan 29 11:57:51.723: 6c:88:14:f5:38:18 0.0.0.0 Removed NPU entry.
*apfMsConnTask_5: Jan 29 11:57:51.723: 6c:88:14:f5:38:18 Central switch is TRUE
*apfMsConnTask_5: Jan 29 11:57:51.723: 6c:88:14:f5:38:18 Not Using WMM Compliance code qosCap 00
*apfMsConnTask_5: Jan 29 11:57:51.723: 6c:88:14:f5:38:18 0.0.0.0 L2AUTHCOMPLETE (4) Plumbed mobile LWAPP rule on AP b4:14:89:d1:d5:c0 vapId 4 apVapId 4 flex-acl-name:
*apfMsConnTask_5: Jan 29 11:57:51.723: 6c:88:14:f5:38:18 0.0.0.0 L2AUTHCOMPLETE (4) Change state to DHCP_REQD (7) last state L2AUTHCOMPLETE (4)
*apfMsConnTask_5: Jan 29 11:57:51.723: 6c:88:14:f5:38:18 0.0.0.0 DHCP_REQD (7) pemApfAddMobileStation2 3451, Adding TMP rule
*apfMsConnTask_5: Jan 29 11:57:51.723: 6c:88:14:f5:38:18 0.0.0.0 DHCP_REQD (7) Adding Fast Path rule
type = Airespace AP - Learn IP address
on AP b4:14:89:d1:d5:c0, slot 0, interface = 1, QOS = 0
IPv4 ACL ID = 255, IPv
*apfMsConnTask_5: Jan 29 11:57:51.723: 6c:88:14:f5:38:18 0.0.0.0 DHCP_REQD (7) Fast Path rule (contd...) 802.1P = 0, DSCP = 0, TokenID = 15206 Local Bridging Vlan = 480, Local Bridging intf id = 21
*apfMsConnTask_5: Jan 29 11:57:51.723: 6c:88:14:f5:38:18 0.0.0.0 DHCP_REQD (7) Successfully plumbed mobile rule (IPv4 ACL ID 255, IPv6 ACL ID 255, L2 ACL ID 255)
*apfMsConnTask_5: Jan 29 11:57:51.723: 6c:88:14:f5:38:18 0.0.0.0 DHCP_REQD (7) pemApfAddMobileStation2 3639, Adding TMP rule
*apfMsConnTask_5: Jan 29 11:57:51.723: 6c:88:14:f5:38:18 0.0.0.0 DHCP_REQD (7) Replacing Fast Path rule
type = Airespace AP - Learn IP address
on AP b4:14:89:d1:d5:c0, slot 0, interface = 1, QOS = 0
IPv4 ACL ID = 255,
*apfMsConnTask_5: Jan 29 11:57:51.723: 6c:88:14:f5:38:18 0.0.0.0 DHCP_REQD (7) Fast Path rule (contd...) 802.1P = 0, DSCP = 0, TokenID = 15206 Local Bridging Vlan = 480, Local Bridging intf id = 21
*apfMsConnTask_5: Jan 29 11:57:51.723: 6c:88:14:f5:38:18 0.0.0.0 DHCP_REQD (7) Successfully plumbed mobile rule (IPv4 ACL ID 255, IPv6 ACL ID 255, L2 ACL ID 255)
*apfMsConnTask_5: Jan 29 11:57:51.723: 6c:88:14:f5:38:18 apfPemAddUser2 (apf_policy.c:333) Changing state for mobile 6c:88:14:f5:38:18 on AP b4:14:89:d1:d5:c0 from Associated to Associated
*apfMsConnTask_5: Jan 29 11:57:51.723: 6c:88:14:f5:38:18 apfPemAddUser2:session timeout forstation 6c:88:14:f5:38:18 - Session Tout 0, apfMsTimeOut '0' and sessionTimerRunning flag is 0
*apfMsConnTask_5: Jan 29 11:57:51.723: 6c:88:14:f5:38:18 Stopping deletion of Mobile Station: (callerId: 48)
*apfMsConnTask_5: Jan 29 11:57:51.723: 6c:88:14:f5:38:18 Func: apfPemAddUser2, Ms Timeout = 0, Session Timeout = 0
*apfMsConnTask_5: Jan 29 11:57:51.723: 6c:88:14:f5:38:18 Sending Assoc Response to station on BSSID b4:14:89:d1:d5:c3 (status 0) ApVapId 4 Slot 0
*apfMsConnTask_5: Jan 29 11:57:51.724: 6c:88:14:f5:38:18 apfProcessAssocReq (apf_80211.c:8294) Changing state for mobile 6c:88:14:f5:38:18 on AP b4:14:89:d1:d5:c0 from Associated to Associated
*pemReceiveTask: Jan 29 11:57:51.724: 6c:88:14:f5:38:18 0.0.0.0 Added NPU entry of type 9, dtlFlags 0x0
*pemReceiveTask: Jan 29 11:57:51.724: 6c:88:14:f5:38:18 0.0.0.0 Added NPU entry of type 9, dtlFlags 0x0
*apfOrphanSocketTask: Jan 29 11:57:56.416: 6c:88:14:f5:38:18 Orphan Packet from STA - IP 10.10.48.26
*apfOrphanSocketTask: Jan 29 11:57:56.417: 6c:88:14:f5:38:18 Invalid MSCB state, regType=2, Dhcp required!
*apfOrphanSocketTask: Jan 29 11:57:56.417: 6c:88:14:f5:38:18 IPv4 Addr: 10:10:48:26
*DHCP Socket Task: Jan 29 11:58:04.793: 6c:88:14:f5:38:18 DHCP received op BOOTREQUEST (1) (len 308,vlan 501, port 1, encap 0xec03)
*DHCP Socket Task: Jan 29 11:58:04.793: 6c:88:14:f5:38:18 DHCP (encap type 0xec03) mstype 0ff:ff:ff:ff:ff:ff
*DHCP Socket Task: Jan 29 11:58:07.793: 6c:88:14:f5:38:18 DHCP received op BOOTREQUEST (1) (len 308,vlan 501, port 1, encap 0xec03)
*DHCP Socket Task: Jan 29 11:58:07.793: 6c:88:14:f5:38:18 DHCP (encap type 0xec03) mstype 0ff:ff:ff:ff:ff:ff
*SNMPTask: Jan 29 11:58:51.194: 6c:88:14:f5:38:18 Central Switch = TRUE
*SNMPTask: Jan 29 11:58:51.194: 6c:88:14:f5:38:18 Central Switch = TRUE
*SNMPTask: Jan 29 11:58:51.198: 6c:88:14:f5:38:18 Central Switch = TRUE
*SNMPTask: Jan 29 11:58:51.199: 6c:88:14:f5:38:18 Central Switch = TRUE
*DHCP Socket Task: Jan 29 11:59:17.382: 6c:88:14:f5:38:18 DHCP received op BOOTREQUEST (1) (len 308,vlan 501, port 1, encap 0xec03)
*DHCP Socket Task: Jan 29 11:59:17.382: 6c:88:14:f5:38:18 DHCP (encap type 0xec03) mstype 0ff:ff:ff:ff:ff:ff
*DHCP Socket Task: Jan 29 11:59:21.385: 6c:88:14:f5:38:18 DHCP received op BOOTREQUEST (1) (len 308,vlan 501, port 1, encap 0xec03)
*DHCP Socket Task: Jan 29 11:59:21.385: 6c:88:14:f5:38:18 DHCP (encap type 0xec03) mstype 0ff:ff:ff:ff:ff:ff
*apfReceiveTask: Jan 29 11:59:51.725: 6c:88:14:f5:38:18 0.0.0.0 DHCP_REQD (7) DHCP Policy timeout. Number of DHCP Discover 0, DHCP Request 0 from client
*apfReceiveTask: Jan 29 11:59:51.725: 6c:88:14:f5:38:18 Interface Group was NULL.Number of DHCP Discovery 0 from client
*apfReceiveTask: Jan 29 11:59:51.725: 6c:88:14:f5:38:18 0.0.0.0 DHCP_REQD (7) Pem timed out, Try to delete client in 10 secs.
*apfReceiveTask: Jan 29 11:59:51.725: 6c:88:14:f5:38:18 Scheduling deletion of Mobile Station: (callerId: 12) in 10 seconds
*osapiBsnTimer: Jan 29 12:00:01.725: 6c:88:14:f5:38:18 apfMsExpireCallback (apf_ms.c:626) Expiring Mobile!
*apfReceiveTask: Jan 29 12:00:01.725: 6c:88:14:f5:38:18 apfMsExpireMobileStation (apf_ms.c:6655) Changing state for mobile 6c:88:14:f5:38:18 on AP b4:14:89:d1:d5:c0 from Associated to Disassociated
*apfReceiveTask: Jan 29 12:00:01.725: 6c:88:14:f5:38:18 Scheduling deletion of Mobile Station: (callerId: 45) in 10 seconds
*osapiBsnTimer: Jan 29 12:00:11.725: 6c:88:14:f5:38:18 apfMsExpireCallback (apf_ms.c:626) Expiring Mobile!
*apfReceiveTask: Jan 29 12:00:11.726: 6c:88:14:f5:38:18 Sent Deauthenticate to mobile on BSSID b4:14:89:d1:d5:c0 slot 0(caller apf_ms.c:6749)
*apfReceiveTask: Jan 29 12:00:11.726: 6c:88:14:f5:38:18 Setting active key cache index 8 ---> 8
*apfReceiveTask: Jan 29 12:00:11.726: 6c:88:14:f5:38:18 Deleting the PMK cache when de-authenticating the client.
*apfReceiveTask: Jan 29 12:00:11.726: 6c:88:14:f5:38:18 Global PMK Cache deletion failed.
*apfReceiveTask: Jan 29 12:00:11.726: 6c:88:14:f5:38:18 apfMsAssoStateDec
*apfReceiveTask: Jan 29 12:00:11.726: 6c:88:14:f5:38:18 apfMsExpireMobileStation (apf_ms.c:6787) Changing state for mobile 6c:88:14:f5:38:18 on AP b4:14:89:d1:d5:c0 from Disassociated to Idle
Then client go to authenticate again and this logs repeat

i like it when i get debugs :).
*apfReceiveTask: Jan 29 11:59:51.725: 6c:88:14:f5:38:18 0.0.0.0 DHCP_REQD (7) Pem timed out, Try to delete client in 10 secs.
your issue is the client is not doing DHCP. is the dhcp required checkbox enabled on the wlan advanced tab?

Message server hogs CPU when clients are disconnected

Hi, I have a problem where java process for the Sun One Message Queue (3.0.1) hogs the cpu when a client is disconnected. I am trying to use the MQ in an environment where clients might crash and try to reconnect in an unpredictable fashion. Most of the time, when I kill the client and restart it, I do not see the problem. Sometimes, however, doing so makes the java process of mq take almsot 100% of Cpu and it does not go down unless i kill the mq process.
I am using asynchrnous message listeners with transactions, on a persisted queue, although i saw this problem when transaction was disabled.
Does anyone have any idea what might be the source of the problem? I hope it's just a matter of configuring MQ correctly, but i could figure it out. Help would be greatly appreciated.

Are you running the enterprise edition and
using round-robin queues with multiple
receivers ?
If so, you may be running into a timing related bug
in multiple receivers that has been fixed in service
pack releases of the software
You should contact sun support to discuss testing with
the lastest service pack.
If not, can you provide more information (platform,
# and type of receivers, etc) on how you are using
the product
Thanks

RDP Session Disconnect/Reconnect when RemoteApp is in Not Responding State (Server 2012)

Some of our applications running in our RDS environment tend to enter the Not Responding state while they're waiting for something in the background to happen (open a window, perform a calculation, etc.). When this happens we notice that the RemoteApp session
will quickly disconnect and then reconnect. This causes an issue with dialog boxes. For example, printing to PDF. A lot of time the dialog box for specifying where to save the PDF is in the background because RemoteApp disconnected and reconnected
causing the program your printing from to become the window of focus. This makes user think the program is truly not responding when in reality the dialog box is hidden and waiting for them. They then need to click the icon on the taskbar to access the
dialog window.
To my knowledge we never had this issue with Server 2008 R2. Any help with this is greatly appreciated!
Scott

Hi Scott,
Is the server 2012 R2?
Please confirm in the logs that a disconnect/reconnect is occurring. On the client you would look at TerminalServices-ActiveXCore and on the server side you would look at TerminalServices-LocalSessionManager.
When this happened you had a continuous ping to the server and it did not lose any pings?
Having solid pings is a good sign, but you can still have a network problem that will cause the connection to drop. You may want to update the NIC driver and firmware to the latest version recommended by your server manufacturer.
Additionally you should consider any routers/switches/etc. that are between the clients and the server as potentially suspect. For example, I have seen where a NAT router would drop a connection periodically, then the connection would be re-established
and not have issues (until the next time). One way to test would be to swap in a different make and model router/switch and see if the problem still exists.
Thanks.
-TP

Wireless constantly disconnects

Hi,
I am running an extremely old laptop (inspiron 4100) with lxde. The card I am using is a linksys PCMCIA the chipset is BCM4306 Rev 3.
The wireless would constantly disconnect and not reconnect using "Network-manager". I am now trying to connect manually from terminal using iwconfig (the internet here only has WEP) and it is not doing any better. Is this a driver issue most likely? Should I try to reinstall the network card?

Do you actually know from using other networks that the problem isn't the signal? Constant disconnects have only ever bugged me when the signal was weak or the connection really strained.

AFP inactive/sleeping clients not disconnecting

I have set clients to automatically disconnect after a certain amount of inactivity, or if they sleep, in Tiger server AFP services settings pane. Howerver, it seems nothing is ever being disconnected, as I've regularly got a list of clients that have been inactive or sleeping for hours still holding onto their connections. Every morning I have to manually kill all the inactive connections to allow users to log on again (as it seems the old connection is somehow preventing them from logging on again)...
help?
thanks
David Hoare

Do you have the server set to allow idle clients to auto-reconnect?
http://support.apple.com/kb/TA23219

My mac osx 10.7.3 constantly disconnects from airport internet.

my mac osx 10.7.3 constantly disconnects from airport internet. I am able to reconnect every time but do this every 10 mins. i went to try and change channel but no airport base stations were found. i am positive it is not the router as all other devices stay connected. cant find any answers to my problem, just tons of others with the same issue!!!!

You can't discount your router just because the other devices work. The first thing I'd recommend doing is restarting the modem and router, then checking the router has the most up-to-date firmware (need to check that owners manual) and then you can check some other things like DNS settings and router channel conflicts with neighbors.
After restarting the router and double checking the firmware is up-to-date then I'd recommend checking the channel your router is on and what your neighbors use. You can download and use iStumbler, this will scan your area. If you are like most users neither you or your neighbors have changed the router channel from the default 5 or 6 channel. Look to see what channels are not being used and reset the router's channel. If that doesn't work then reset the DNS settings from the defaults your ISP uses. If you get to the point where the DNS does need to be reset here are the instructions:
1. System preferences
2. Network
3. Click Advanced
4. Click DNS tab
5. Click + sign
6. Add 208.67.222.222
7. Click + sign
8. Add 208.67.220.220
9. Click OK.
10. Exit System Preferences
If you want more info on the DNS please read CNET's DNS Article and MacWorld's DNS Troubleshooting articles. If all that fails then you can simply toggle the wi-fi on and off on the w-fi menu in the upper right of your screen.

Windows 7 keeps freezing, disconnecting/reconnecting USB devices

Last week, a lightning strike near where I live caused a power surge and as a result, my ethernet card was fried. I took my computer (iMac) to a store to have it repaired, and they wound up replacing the entire motherboard (a bit extreme in my opinion, but what do I know).
When I got it back today, sure the ethernet problem was solved, but I noticed that my taskbar was acting weird - specifically the icons in the notification tray. Lots of them were "blank", meaning there were just empty spaces that would highlight when I hovered the cursor over them, but nothing happened when I clicked them.
Then I discovered that clicking any of the icons in the notification tray almost immediately froze the computer. Frozen, as in completely unresponsive to the point where my only option was to manually shut off the computer. That happened twice.
My solution was to reboot in safe mode and run system restore to an earlier point. That fixed the notification tray problem (no more freezing, and the icons were all back), but the computer still keeps freezing at random intervals. Again, my only solution is to manually shut it off by holding down the power button, which I hate doing because I know it's bad for the hard drive. Sometimes it froze as soon as the welcome screen. I tried running a virus scan, but again it froze in the middle of the process.
On top of the constant freezing, it keeps disconnecting/reconnecting my usb devices. My mouse and keyboard will suddenly drop out for five seconds and then start working again. This constantly happens, to the tune of several "disconnect" sounds playing over the speakers.
What the heck is going on? I tried re-installing the Boot Camp drivers, but that didn't work. I have my Windows 7 CD and backed up files, so if worse comes to worst I can do a clean install of Windows, but I'd rather not have to spend a day re-building my computer, and I'd REALLY rather not take it back in for another repair, since that took a week and I need this for my work.
Any ideas on what I should do? I'm out of town on my laptop for the weekend, and I'd like to have a game plan for when I get back.

I'm very excited to finally have a solution for this problem. Thank You Balaji for figuring this out. I've been struggling with this for a number of years, and had only one USB Hard Drive that worked. I too have VMware workstation, and had the missing files
in "c:\windows\inf." I can say with certainty that I did not delete the files from that folder, but something is common in both of our situations. Maybe it has to do with VMware, and some of it's updates over the years. I'm also using nCompute to share out
a networked desktop via the wire.
One more thing worthy of mention is this machine was an update from Windows Vista, and the USB hard drive that worked was configured back than. So although I could never add another HD, at least I had the one.
Now with having copied over the files, I can plugin other USB enclosures with different drives and they too are working.
Like you mentioned, it was always possible to use USB devices within my Virtual Machines, so it was clear that the USB ports were functional. I actually got the files from a clean Windows 7 VM, copying out the \windows\inf folder and doing a compare between
the the real one and the virtual one. I found the two missing files you mentioned, along with 8 others. I went ahead and included them all in your fix.
It worked, Amazing. Thanks again. :O)

5508 WLC on 7.4MR2- Clients getting Disconnected using CWA

We are experiencing an issue with clients getting disconnected/time out from a wlan doing CWA. The clients are iphones. A debug client shows the error(Unknown Policy Timeout). This particular WLAN is used for provisioning with ISE. ISE shows the user authenticated the entuire time. At first, we though it was the user idle timeout setting on the WLAN advanced tab, but after increasing that clients still get disconnected. The disconnect occurs around 2 minutes. Sometimes longer around 10 minutes. Cisco seems to think we are hitting a bug introduced in 7.3.112 and will not be fixed until 8.0. Below are the bug details and the debug output. Has anyone seen this? Any possible work-arounds? Thanks.
(Cisco Controller) >debug *apfMsConnTask_7: Mar 20 17:19:02.573: Association request from the P2P Client Process P2P Ie and Upadte CB
*apfMsConnTask_7: Mar 20 17:19:02.765: Association request from the P2P Client Process P2P Ie and Upadte CB
*apfReceiveTask: Mar 20 17:20:40.442: 18:af:61:bb:55:2f 10.200.21.0 RUN (20) Unknown Policy timeout
*apfReceiveTask: Mar 20 17:20:40.442: 18:af:61:bb:55:2f 10.200.21.0 RUN (20) Pem timed out, Try to delete client in 10 secs.
*apfReceiveTask: Mar 20 17:20:40.443: 18:af:61:bb:55:2f Scheduling deletion of Mobile Station: (callerId: 12) in 10 seconds
*osapiBsnTimer: Mar 20 17:20:50.443: 18:af:61:bb:55:2f apfMsExpireCallback (apf_ms.c:615) Expiring Mobile!
*apfReceiveTask: Mar 20 17:20:50.443: 18:af:61:bb:55:2f apfMsExpireMobileStation (apf_ms.c:5835) Changing state for mobile 18:af:61:bb:55:2f on AP 54:78:1a:2f:84:50 from Associated to Disassociated
*apfReceiveTask: Mar 20 17:20:50.443: 18:af:61:bb:55:2f Scheduling deletion of Mobile Station: (callerId: 45) in 10 seconds
*osapiBsnTimer: Mar 20 17:21:00.442: 18:af:61:bb:55:2f apfMsExpireCallback (apf_ms.c:615) Expiring Mobile!
*apfReceiveTask: Mar 20 17:21:00.443: 18:af:61:bb:55:2f Sent Deauthenticate to mobile on BSSID 54:78:1a:2f:84:50 slot 1(caller apf_ms.c:5929)
*apfReceiveTask: Mar 20 17:21:00.443: 18:af:61:bb:55:2f Setting active key cache index 8 ---> 8
*apfReceiveTask: Mar 20 17:21:00.443: 18:af:61:bb:55:2f Deleting the PMK cache when de-authenticating the client.
*apfReceiveTask: Mar 20 17:21:00.443: 18:af:61:bb:55:2f Global PMK Cache deletion failed.
*apfReceiveTask: Mar 20 17:21:00.443: 18:af:61:bb:55:2f apfMsAssoStateDec
*apfReceiveTask: Mar 20 17:21:00.443: 18:af:61:bb:55:2f apfMsExpireMobileStation (apf_ms.c:5967) Changing state for mobile 18:af:61:bb:55:2f on AP 54:78:1a:2f:84:50 from Disassociated to Idle
https://tools.cisco.com/bugsearch/bug/CSCul43158
Symptom:Wireless devices are randomly disconnected every 5-10 minutes with unknown policy timeout message in debug client
Conditions:Clients using Central Web Authentication (CWA).
Workaround:none
More Info:

mine is with the following. Still trying to figure out why.
*osapiBsnTimer: Mar 17 12:58:05.949: f8:16:54:07:a8:78 apfMsExpireCallback (apf_ms.c:626) Expiring Mobile!
*apfReceiveTask: Mar 17 12:58:05.949: f8:16:54:07:a8:78 apfMsExpireMobileStation (apf_ms.c:6655) Changing state for mobile f8:16:54:07:a8:78 on AP 00:e1:6d:b2:a6:90 from Associated to Disassociated
*apfReceiveTask: Mar 17 12:58:05.949: f8:16:54:07:a8:78 Scheduling deletion of Mobile Station: (callerId: 45) in 10 seconds
*annyway, i've tried increasing the Session Timeout to 8hours and still testing it .. As my problem is not consistent, i have to monitor and see if its solved.

Itunes hangs on disconnect / reconnect of internet connection

Quite often I do stream internet radio stations using Itunes. I am listening through my BeoCenter2. When I swich of the BeoCenter2, I often forget to
stop the stream in Itunes. This would not a problem, but because my internet provider drops the connection every night for one second.
This disconnect / reconnect is not handled by Itunes correctely. From this moment on Itunes is frozen and hangs. Itunes has to be killed.
Any advice? Or is there a bug fix on the way?

Hi,
Thanks for that - good advice I'll file a report.
I've just switched to streaming music this way after struggling for many years with a Logitech Duet. When it worked it was brilliant, but very flaky at times. Naively I thought I would switch to something totally reliable and sorted. To be fair the remote app works brilliantly on iphone and no problem with streaming my music collection - just that, like you, I stream radio feeds too. I cannot believe others don't have the same problem too. My internet connection drops out several times a day, which I'm pursuing as well.
If/when I make progress I'll post it.

WAP371 clients constantly disconnecting/reconnecting

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