Aironet WAP goes down often
Hi
Iam facing an issue with Aironet WAP's. Some of the WAP are going down often. This WAP are powered on with power injectors. As a workaround once after remove and reconnect the patch cable from patch panel to the power injector WAP will come up.
appreciate your help to find the root cause
Thanks in advance
Shanil
Once after reboot the WAP i would be able to access the WAP ,associate and passtraffic.
While WAP is down its powered on and iam able to console and could see all the radio interfaces are up, there are some logs for AAA radius server authentication failed ,find below
*Mar 8 02:34:50.211: %DOT11-7-AUTH_FAILED: Station 40fc.8947.0777 Authentication failed
*Mar 8 02:35:27.188: %RADIUS-6-SERVERALIVE: Group rad_eap: Radius server 192.168.200.14:1645,1646 is responding again (previously dead).
*Mar 8 02:35:27.188: %RADIUS-4-RADIUS_ALIVE: RADIUS server 192.168.200.14:1645,1646 is being marked alive.
*Mar 8 02:35:38.070: %RADIUS-4-RADIUS_DEAD: RADIUS server 192.168.200.14:1645,1646 is not responding.
*Mar 8 02:36:13.156: %RADIUS-4-RADIUS_ALIVE: RADIUS server 192.168.10.9:1645,1646 is being marked alive.
*Mar 8 02:36:28.280: %RADIUS-4-RADIUS_DEAD: RADIUS server 192.168.10.9:1645,1646 is not responding.
*Mar 8 02:36:28.280: %RADIUS-3-ALLDEADSERVER: Group rad_eap: No active radius servers found. Id 229.
*Mar 8 02:38:51.951: %DOT11-7-AUTH_FAILED: Station 40fc.8947.0777 Authentication failed
*Mar 8 02:43:11.941: %DOT11-7-AUTH_FAILED: Station 40fc.8947.0777 Authentication failed
*Mar 8 02:46:20.526: %DOT11-7-AUTH_FAILED: Station 40fc.8947.0777 Authentication failed
*Mar 8 02:49:51.234: %DOT11-7-AUTH_FAILED: Station 40fc.8947.0777 Authentication failed
*Mar 8 02:50:52.514: %DOT11-7-AUTH_FAILED: Station 40fc.8947.0777 Authentication failed
*Mar 8 02:53:57.464: %DOT11-7-AUTH_FAILED: Station 40fc.8947.0777 Authentication failed
*Mar 8 02:55:02.261: %DOT11-7-AUTH_FAILED: Station 40fc.8947.0777 Authentication failed
*Mar 8 02:56:06.147: %DOT11-4-MAXRETRIES: Packet to client 0021.6a0b.b80e reached max retries, removing the client
*Mar 8 02:56:06.147: Client 0021.6a0b.b80e failed: reached maximum retries
*Mar 8 02:57:17.949: %DOT11-7-AUTH_FAILED: Station 0021.6a0b.b80e Authentication failed
*Mar 8 02:58:23.966: %DOT11-7-AUTH_FAILED: Station 40fc.8947.0777 Authentication failed
*Mar 8 02:59:01.895: %DOT11-7-AUTH_FAILED: Station 0021.6a0b.b80e Authentication failed
*Mar 8 02:59:25.280: %DOT11-7-AUTH_FAILED: Station 40fc.8947.0777 Authentication failed
*Mar 8 03:00:02.177: Client 0021.6a0b.b80e failed: reached maximum retries
*Mar 8 03:00:02.184: %DOT11-4-MAXRETRIES: Packet to client 0021.6a0b.b80e reached max retries, removing the client
*Mar 8 03:05:13.237: %DOT11-7-AUTH_FAILED: Station 40fc.8947.0777 Authentication failed
*Mar 8 03:05:38.016: %RADIUS-6-SERVERALIVE: Group rad_eap: Radius server 192.168.200.14:1645,1646 is responding again (previously dead).
*Mar 8 03:05:38.016: %RADIUS-4-RADIUS_ALIVE: RADIUS server 192.168.200.14:1645,1646 is being marked alive.
*Mar 8 03:05:50.177: %RADIUS-4-RADIUS_DEAD: RADIUS server 192.168.200.14:1645,1646 is not responding.
*Mar 8 03:06:02.369: %RADIUS-3-ALLDEADSERVER: Group rad_eap: No active radius servers found. Id 45.
*Mar 8 03:06:14.542: %DOT11-7-AUTH_FAILED: Station 40fc.8947.0777 Authentication failed
*Mar 8 03:06:28.279: %RADIUS-6-SERVERALIVE: Group rad_eap: Radius server 192.168.10.9:1645,1646 is responding again (previously dead).
*Mar 8 03:06:28.279: %RADIUS-4-RADIUS_ALIVE: RADIUS server 192.168.10.9:1645,1646 is being marked alive.
*Mar 8 03:06:47.921: %RADIUS-4-RADIUS_DEAD: RADIUS server 192.168.10.9:1645,1646 is not responding.
*Mar 8 03:07:06.082: %RADIUS-3-ALLDEADSERVER: Group rad_eap: No active radius servers found. Id 47.
*Mar 8 03:08:26.030: %DOT11-7-AUTH_FAILED: Station 0021.6a0b.b80e Authentication failed
*Mar 8 03:09:00.571: %DOT11-7-AUTH_FAILED: Station 0021.6a36.f204 Authentication failed
*Mar 8 03:09:48.183: Client 0021.6a0b.b80e failed: reached maximum retries
*Mar 8 03:10:44.963: %DOT11-7-AUTH_FAILED: Station 40fc.8947.0777 Authentication failed
*Mar 8 03:11:44.490: %DOT11-7-AUTH_FAILED: Station 0026.bbb1.e195 Authentication failed
*Mar 8 03:14:06.304: %DOT11-7-AUTH_FAILED: Station 40fc.8947.0777 Authentication failed
*Mar 8 03:15:11.103: %DOT11-7-AUTH_FAILED: Station 40fc.8947.0777 Authentication failed
*Mar 8 03:18:17.630: %DOT11-7-AUTH_FAILED: Station 40fc.8947.0777 Authentication failed
*Mar 8 03:19:18.911: %DOT11-7-AUTH_FAILED: Station 40fc.8947.0777 Authentication failed
*Mar 8 03:20:32.489: %DOT11-7-AUTH_FAILED: Station 0021.6a0b.b80e Authentication failed
ENOCH3F1A_WAP003#sh ip int bri
Interface IP-Address OK? Method Status Protocol
BVI1 172.20.1.20 YES NVRAM up up
Dot11Radio0 unassigned YES NVRAM up up
Dot11Radio0.23 unassigned YES unset up up
Dot11Radio0.55 unassigned YES unset up up
FastEthernet0 unassigned YES NVRAM up up
FastEthernet0.23 unassigned YES unset up up
FastEthernet0.50 unassigned YES unset up up
FastEthernet0.55 unassigned YES unset up up
ENOCH3F1A_WAP003#
ENOCH3F1A_WAP003#sh dot11 as
802.11 Client Stations on Dot11Radio0:
SSID [WAP] :
MAC Address IP address Device Name Parent State
183d.a214.3818 0.0.0.0 ccx-client ENOCH3F1A_WAP00 self AAA_Auth
40fc.8947.0777 0.0.0.0 unknown - self AAA_Auth
a088.b420.1c34 0.0.0.0 ccx-client ENOCH3F1A_WAP00 self AAA_Auth
*Mar 8 02:34:50.211: %DOT11-7-AUTH_FAILED: Station 40fc.8947.0777 Authentication failed
*Mar 8 02:35:27.188: %RADIUS-6-SERVERALIVE: Group rad_eap: Radius server 192.168.200.14:1645,1646 is responding again (previously dead).
*Mar 8 02:35:27.188: %RADIUS-4-RADIUS_ALIVE: RADIUS server 192.168.200.14:1645,1646 is being marked alive.
*Mar 8 02:35:38.070: %RADIUS-4-RADIUS_DEAD: RADIUS server 192.168.200.14:1645,1646 is not responding.
*Mar 8 02:36:13.156: %RADIUS-4-RADIUS_ALIVE: RADIUS server 192.168.10.9:1645,1646 is being marked alive.
*Mar 8 02:36:28.280: %RADIUS-4-RADIUS_DEAD: RADIUS server 192.168.10.9:1645,1646 is not responding.
*Mar 8 02:36:28.280: %RADIUS-3-ALLDEADSERVER: Group rad_eap: No active radius servers found. Id 229.
*Mar 8 02:38:51.951: %DOT11-7-AUTH_FAILED: Station 40fc.8947.0777 Authentication failed
*Mar 8 02:43:11.941: %DOT11-7-AUTH_FAILED: Station 40fc.8947.0777 Authentication failed
*Mar 8 02:46:20.526: %DOT11-7-AUTH_FAILED: Station 40fc.8947.0777 Authentication failed
*Mar 8 02:49:51.234: %DOT11-7-AUTH_FAILED: Station 40fc.8947.0777 Authentication failed
*Mar 8 02:50:52.514: %DOT11-7-AUTH_FAILED: Station 40fc.8947.0777 Authentication failed
*Mar 8 02:53:57.464: %DOT11-7-AUTH_FAILED: Station 40fc.8947.0777 Authentication failed
*Mar 8 02:55:02.261: %DOT11-7-AUTH_FAILED: Station 40fc.8947.0777 Authentication failed
*Mar 8 02:56:06.147: %DOT11-4-MAXRETRIES: Packet to client 0021.6a0b.b80e reached max retries, removing the client
*Mar 8 02:56:06.147: Client 0021.6a0b.b80e failed: reached maximum retries
*Mar 8 02:57:17.949: %DOT11-7-AUTH_FAILED: Station 0021.6a0b.b80e Authentication failed
*Mar 8 02:58:23.966: %DOT11-7-AUTH_FAILED: Station 40fc.8947.0777 Authentication failed
*Mar 8 02:59:01.895: %DOT11-7-AUTH_FAILED: Station 0021.6a0b.b80e Authentication failed
*Mar 8 02:59:25.280: %DOT11-7-AUTH_FAILED: Station 40fc.8947.0777 Authentication failed
*Mar 8 03:00:02.177: Client 0021.6a0b.b80e failed: reached maximum retries
*Mar 8 03:00:02.184: %DOT11-4-MAXRETRIES: Packet to client 0021.6a0b.b80e reached max retries, removing the client
*Mar 8 03:05:13.237: %DOT11-7-AUTH_FAILED: Station 40fc.8947.0777 Authentication failed
*Mar 8 03:05:38.016: %RADIUS-6-SERVERALIVE: Group rad_eap: Radius server 192.168.200.14:1645,1646 is responding again (previously dead).
*Mar 8 03:05:38.016: %RADIUS-4-RADIUS_ALIVE: RADIUS server 192.168.200.14:1645,1646 is being marked alive.
*Mar 8 03:05:50.177: %RADIUS-4-RADIUS_DEAD: RADIUS server 192.168.200.14:1645,1646 is not responding.
*Mar 8 03:06:02.369: %RADIUS-3-ALLDEADSERVER: Group rad_eap: No active radius servers found. Id 45.
*Mar 8 03:06:14.542: %DOT11-7-AUTH_FAILED: Station 40fc.8947.0777 Authentication failed
*Mar 8 03:06:28.279: %RADIUS-6-SERVERALIVE: Group rad_eap: Radius server 192.168.10.9:1645,1646 is responding again (previously dead).
*Mar 8 03:06:28.279: %RADIUS-4-RADIUS_ALIVE: RADIUS server 192.168.10.9:1645,1646 is being marked alive.
*Mar 8 03:06:47.921: %RADIUS-4-RADIUS_DEAD: RADIUS server 192.168.10.9:1645,1646 is not responding.
*Mar 8 03:07:06.082: %RADIUS-3-ALLDEADSERVER: Group rad_eap: No active radius servers found. Id 47.
*Mar 8 03:08:26.030: %DOT11-7-AUTH_FAILED: Station 0021.6a0b.b80e Authentication failed
*Mar 8 03:09:00.571: %DOT11-7-AUTH_FAILED: Station 0021.6a36.f204 Authentication failed
*Mar 8 03:09:48.183: Client 0021.6a0b.b80e failed: reached maximum retries
*Mar 8 03:10:44.963: %DOT11-7-AUTH_FAILED: Station 40fc.8947.0777 Authentication failed
*Mar 8 03:11:44.490: %DOT11-7-AUTH_FAILED: Station 0026.bbb1.e195 Authentication failed
*Mar 8 03:14:06.304: %DOT11-7-AUTH_FAILED: Station 40fc.8947.0777 Authentication failed
*Mar 8 03:15:11.103: %DOT11-7-AUTH_FAILED: Station 40fc.8947.0777 Authentication failed
*Mar 8 03:18:17.630: %DOT11-7-AUTH_FAILED: Station 40fc.8947.0777 Authentication failed
*Mar 8 03:19:18.911: %DOT11-7-AUTH_FAILED: Station 40fc.8947.0777 Authentication failed
*Mar 8 03:20:32.489: %DOT11-7-AUTH_FAILED: Station 0021.6a0b.b80e Authentication failed
ENOCH3F1A_WAP003#sh ip int bri
Interface IP-Address OK? Method Status Protocol
BVI1 172.20.1.20 YES NVRAM up up
Dot11Radio0 unassigned YES NVRAM up up
Dot11Radio0.23 unassigned YES unset up up
Dot11Radio0.55 unassigned YES unset up up
FastEthernet0 unassigned YES NVRAM up up
FastEthernet0.23 unassigned YES unset up up
FastEthernet0.50 unassigned YES unset up up
FastEthernet0.55 unassigned YES unset up up
ENOCH3F1A_WAP003#
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I can see " JControlICheckProcessList: process server0 (pid:29060) died (RUN-FLAG) "
Server.0.log file which is found under....../usr..../cluster/dispatcher/log/system below
#1.5^H#00144F2C90F4003B00000005000007AD000462415D2B1099#1233932782342#/System/Server##com.sap.engine.services.jmx.MBeanServerInvoker#######O
rderedChannel for http service##0#0#Warning#1#/System/Server#Plain###JMX connector exception occurred while processing external JMX request
[ JMX request (java) v1.0 len: 316 | src: cluster target-node: 506782700 req: invoke params-number: 4 params-bytes: 0 | :name=com.sap.porta
l.prt.bridge.service.mbeans.PRTMBeanRuntime,j2eeType=PRTBridge_JMX_SECTION,SAP_J2EEClusterNode=506782700,SAP_J2EECluster="" null null null ]
#1.5^H#00144F2C90F4003D00000002000007AD00046241616F1A3B#1233932853909#/System/Server##com.sap.jms#######OrderedChannel for http service##0#0
#Warning#1#com.sap.jms#Plain###JMS Dispatcher: There is no new lock owner, probably there are no servers connected#
#1.5^H#00144F2C90F4001B0000000B000007AD000462454EF0EEA4#1233949723520#/System/Server##com.sap.engine.core.licensing.impl0.LicensingManagerIm
pl.checkLicense(String)#######Thread[Thread-20,5,main]##0#0#Info#1#com.sap.engine.core.licensing.impl0.LicensingManagerImpl#Java###License c
hecked successfully for software product "".#1#J2EE-Engine_ORA#
#1.5^H#00144F2C90F4001B0000000C000007AD000462596CC84579#1234036123518#/System/Server##com.sap.engine.core.licensing.impl0.LicensingManagerIm
pl.checkLicense(String)#######Thread[Thread-20,5,main]##0#0#Info#1#com.sap.engine.core.licensing.impl0.LicensingManagerImpl#Java###License c
hecked successfully for software product "".#1#J2EE-Engine_ORA#
#1.5^H#00144F2C90F4001B0000000D000007AD0004626D8A9FB2AD#1234122523521#/System/Server##com.sap.engine.core.licensing.impl0.LicensingManagerIm
pl.checkLicense(String)#######Thread[Thread-20,5,main]##0#0#Info#1#com.sap.engine.core.licensing.impl0.LicensingManagerImpl#Java###License c
hecked successfully for software product "".#1#J2EE-Engine_ORA#
#1.5^H#00144F2C90F4002D0000000E000007AD0004627D1172A80A#1234189210003#/System/Server##com.sap.engine.core.locking.AbstractLockingManagerImpl
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uster-element was lost. Removing all enque locks related to the lost node.#1#506782750#
#1.5^H#00144F2C90F4003E00000003000007AD0004627D1172B29E#1234189210006#/System/Server/Critical##com.sap.engine.core.thread.impl6.SingleThread
.SingleThread.run().InterruptedException#######Session Reader for cluster node 506782750##0#0#Warning#1#com.sap.engine.core.thread.impl6.Sin
gleThread#Plain###java.lang.InterruptedException#
#1.5^H#00144F2C90F4002D0000000F000007AD0004627D1173D32D#1234189210006#/System/Server##com.sap.engine.core.locking.AbstractLockingManagerImpl
.removeAllLokcsForClusterIdLogException(clusterId)#######OrderedChannel for http service##0#0#Info#1#com.sap.engine.core.locking.AbstractLoc
kingManagerImpl#Java###All locks for cluster-element removed successfully#1#506782750#
#1.5^H#00144F2C90F4003700000003000007AD0004627D11769F61#1234189210263#/System/Server##com.sap.engine.services.iiop.dispatcher#######OrderedC
hannel for http service##0#0#Warning#1#com.sap.engine.services.iiop.dispatcher#Plain###May be 506782750 cluster node isn't informed for a fa
iled connection. Original exception :
^M
com.sap.engine.frame.cluster.message.DestinationNotAvailableException: Participant 506,782,750 is not available.
at com.sap.engine.core.cluster.impl6.ClusterManagerImpl.ms_sendMessage(ClusterManagerImpl.java:2378)
at com.sap.engine.core.service630.context.cluster.message.MessageContextImpl.send(MessageContextImpl.java:85)
at com.sap.engine.services.iiop.dispatcher.CorbaSessionProcessor.fail(CorbaSessionProcessor.java:237)
at com.sap.engine.core.manipulator.TCPRunnableConnection.disposeConnection(TCPRunnableConnection.java:496)
at com.sap.engine.core.manipulator.TCPRunnableConnection$ReadNonHttpThread.run(TCPRunnableConnection.java:1386)
at com.sap.engine.frame.core.thread.Task.run(Task.java:64)
at com.sap.engine.core.thread.impl6.SingleThread.execute(SingleThread.java:80)
at com.sap.engine.core.thread.impl6.SingleThread.run(SingleThread.java:150)
#1.5^H#00144F2C90F4002D00000010000007AD0004627D14E245AD#1234189267649#/System/Server##com.sap.engine.services.jmx.MBeanServerInvoker#######O
rderedChannel for http service##0#0#Warning#1#/System/Server#Plain###JMX connector exception occurred while processing external JMX request
[ JMX request (java) v1.0 len: 316 | src: cluster target-node: 506782700 req: invoke params-number: 4 params-bytes: 0 | :name=com.sap.porta
l.prt.bridge.service.mbeans.PRTMBeanRuntime,j2eeType=PRTBridge_JMX_SECTION,SAP_J2EEClusterNode=506782700,SAP_J2EECluster="" null null null ]
#1.5^H#00144F2C90F4003800000006000007AD0004627D1978CAF9#1234189344623#/System/Server##com.sap.jms#######OrderedChannel for http service##0#0
#Warning#1#com.sap.jms#Plain###JMS Dispatcher: There is no new lock owner, probably there are no servers connected#
#1.5^H#00144F2C90F4002E00000011000007AD0004627F55A77C8F#1234198944250#/System/Server##com.sap.engine.core.locking.AbstractLockingManagerImpl
.elementLoss(element)#######OrderedChannel for http service##0#0#Info#1#com.sap.engine.core.locking.AbstractLockingManagerImpl#Java###The cl
uster-element was lost. Removing all enque locks related to the lost node.#1#506782750#
#1.5^H#00144F2C90F4002E00000012000007AD0004627F55A785B6#1234198944253#/System/Server##com.sap.engine.core.locking.AbstractLockingManagerImpl
.removeAllLokcsForClusterIdLogException(clusterId)#######OrderedChannel for http service##0#0#Info#1#com.sap.engine.core.locking.AbstractLoc
kingManagerImpl#Java###All locks for cluster-element removed successfully#1#506782750#
#1.5^H#00144F2C90F4003C00000002000007AD0004627F55A7C005#1234198944268#/System/Server/Critical##com.sap.engine.core.thread.impl6.SingleThread
.SingleThread.run().InterruptedException#######Session Reader for cluster node 506782750##0#0#Warning#1#com.sap.engine.core.thread.impl6.Sin
gleThread#Plain###java.lang.InterruptedException#
#1.5^H#00144F2C90F4004300000000000007AD0004627F58C11B93#1234198996261#/System/Server##com.sap.engine.services.jmx.MBeanServerInvoker#######S
APEngine_System_Thread[impl:6]_65##0#0#Warning#1#/System/Server#Plain###JMX connector exception occurred while processing external JMX reque
st [ JMX request (java) v1.0 len: 316 | src: cluster target-node: 506782700 req: invoke params-number: 4 params-bytes: 0 | :name=com.sap.po
rtal.prt.bridge.service.mbeans.PRTMBeanRuntime,j2eeType=PRTBridge_JMX_SECTION,SAP_J2EEClusterNode=506782700,SAP_J2EECluster="" null null nul
l ]#
Please help..
Addy -
Adobe Bridge CS4 Hangs and whole system goes down.
Adobe Bridge CS4 Hangs and whole system goes down.
This is happening when I just finished edition RAW files in ACR and hit DONE, right after that a Bridge hangs, Cannot open Explorer, PC functions are down, cannot start anything, cannot stop Bridge process, cannot properly restart. Only holding power button shuts donw PC forcefylly.
I happens once per 10 edits of RAW files and super annoying.
Pleeeeease help!No wonder I think this is Bridge.
That is indeed a tempting thought, have you already tried the refresh preferences for Bridge using ctrl key pressed down while restarting Bridge?
But Bridge is very critical in reacting on odd system behavior, so also keep the advice of Station-Two in mind. On a Mac repairing permissions often solves problems, don't know the PC equivalent of this. -
The screen on my MacBook goes black often. I can still see a faint image of what's on the screen, and can only get it to illuminate by moving it back and forth. What could the issue be? How can it be fixed?
The startup disk may need repairing ...
Launch Disk Utility located in HD > Applications > Utilities
Select the startup disk on the left then select the First Aid tab.
Click: Verify Disk (not Verify Disk Permissions)
If the disk needs repairing, restart your Mac while holding down the Command + R keys. From there you can access the built in utilities in OS X Recovery to repair the startup disk. -
We have a 1200 Aironet just go down hard for no reason through out the day, we replaced the Power Injector with a C2960 POE Switch, we also replaced the cabiling. When it goes down hard all three lights are still green as if the AP is still up. We verified the IOS with other stores and everything is the same on the configurations, versions, and IOS.
Can anyone give us a suggestion on what the issue or something else we can look at that we might be over looking?
Couple more things that we have done:
We verified the IOS with other stores and everything is the same on the configurations, versions, and IOS.
Thanks in advance......Hello John,
As per your query i can suggest you the following solution-
Please check the POE for the AP and whether it is proper or not.
Types of Power over Ethernet
This section describes various types of Power over Ethernet (PoE) including Cisco pre-standard power, IEEE 802.3af power, and IEEE 802.3at power.
Cisco Pre-Standard Power
The first generation of Cisco pre-standard PoE was designed to power devices such as Cisco IP phones and access points. This pre-standard solution had relatively low power requirements (approximately 6 to 7 watts). Later generations of pre-standard power supported higher power modes (up to 15 Watts) and added power negotiation via Cisco Discovery Protocol (CDP). In July 2003, the IEEE ratified the 802.1af standard (up to 15.4 watts of power). With the ratification of IEEE 802.3af, Cisco supports both IEEE 802.3af and Cisco pre-standard PoE concurrently. Cisco has also extended pre-standard power management using CDP negotiation to Cisco IEEE 802.3af compliant devices to further optimize Power Source Equipment (PSE) power management.
When using a Cisco pre-standard source for power, it is important to check the power draw in watts (Table 1) and verify that the PSE can supply enough wattage to the powered device. Depending on the version of your PSE, enough power may not be available to supply some of the newer access points.
IEEE 802.3af Power
The IEEE 802.af-2003 PoE standard:
•Defines terminology to describe a port that acts as a power source to a powered device.
•Defines how a powered device is detected.
•Defines two methods of delivering PoE to the discovered device requiring power.
•End-Point PSE—PoE-capable Ethernet port. Power may be delivered by an end-point PSE to a powered device using the active data wires of an Ethernet port or the spare wires. An end-point PSE, such as a PoE-capable Ethernet switch may implement either scheme.
•Mid-span PSE—Can be used to deliver PoE if an existing non-PoE-capable Ethernet switch is used. If a mid-span PSE is used, it can only implement power delivery over the spare pairs of the copper cabling and cannot be used to deliver PoE over 1000BASE-T connections.
Hope this will help you. -
Imac G3 233 starts up a few seconds then power goes down
Hello
I have an imac G3 233
It has been working and i have just plugged it out for 6 months. Now i plugged it in today and it boots up . startup sounds comes ok and hd spins up. Power button is light up.
After a few second the power goes down.
And i have to unplug the power for a while to be able to get it to boot up like that again.
I am clueless ... Any ideas on this?
Message was edited by: sleecin (Added : Have to unplug power for a while to have it boot up at all again) Any info helps right?Hi,
If anything occurs when the computer has been disconnected from the mains for some time, one thing to suspect is often the internal battery. When the voltage falls below approx. 3.0 V, at the latest, the battery should be replaced (the nominal voltage is 3.6 V). Have you noticed any changes as far as the date and time settings are concerned?
Unfortunately, problems in the analogue board area can also affect the ability of certain older iMacs to start up properly.
Please note that working inside an all-in-one Mac is dangerous, and must be carried out by someone who knows exactly what to do. High-voltage charges can remain in various components even if the machine has been switched off.
Jan -
WLAN goes down when WAN goes down
Hi
I have 4 AP with EAP enabled. The authentication servers are located globally and the authentication request goes to the server situated in another country. My problem is that when my WAN goes down my WLAN also goes down immediately. Does the AP communicte with the server even after authentication, Atleast after authentication it should keep my authenticated machines in the network
any help is appreciated
ashish guptaif you use a Cisco ACS server, click on "Interface Configuration" and "Radius (Cisco Aironet)" Make sure that "Aironet-session-time" is checked.
Then, you can change the session timeout in user or group level.
Other ways to resolve the problem:
1. install redundant links to the site
2. configure a second radius server on all access point. The second radius server can be one of the APs locally. If you configure "radius-server deadtime ?", the AP will not communicate to the radius server for a period of time if the radius server does not respond for 3 times. Of course, you have to populate the centralize user database to a number of APs. -
OBIEE 11g environment going down.
Hi Experts,
Our OBIEE 11g Production environment goes down every now and then.
I want to enable some scripts wherein i can get a notification on the pager or email that my obiee environment is down.
So far we have no mechanism to know when is our environment down...
Any pointers in this regard will be highly appreciated.
Our servers are setup in Linux environment.
Thanks
AshishAshish,
you have different 3rd party applications like sitescope, HP Open View etc. You might need to check with your company/alerts team who will setup these alerts for you.
you can go through this to have a clear view of it. http://www.rittmanmead.com/2012/09/automated-monitoring-of-obiee-in-the-enterprise-an-overview/
we use HP Openview and sitescope for these down alerts
mark if it helps -
Trying to get the ipad to open after doing a software update. I only get the itunes logo with an arrow pointing toward it and a lock symbol with a line going down towards the screen button. Any suggestions to get this to open?
You are in Recovery Mode. Follow the instructions below to recover your iPad.
http://support.apple.com/kb/ht4097 -
After upgrading to Mavericks, the free space on my SSD keeps going down for no apparent reason
I downloaded Mavericks and installed it on my macbookpro ( with Crucial M4 SSD) and the free space on my ssd keeps going down for no reason. I reinstalled it from a bootable flashdrive, and the free space went from 20G to 60. Since then it keeps going down and I am now on 48G. I cannot find the source of the drain. Anyone else with the same problem?
http://reviews.cnet.com/8301-13727_7-20025542-263.html
I have not tested the solution suggested in the article linked above.
But hope it helps. -
Planning server goes down when I try to delete a member in Planning Web
Hi,
Planning server goes down when I try to delete a member in Planning Web. I am using Hyperion Planning 4 with Tomcat 4.1.30 and Windows Server 2003.
I am not sure whats happening. This is the exception log I am looking at:
2009-07-24 18:19:22 ApplicationDispatcher[HyperionPlanning] Servlet.service() for servlet jsp threw exception
javax.servlet.ServletException
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:249)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:684)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:432)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:356)
at org.apache.catalina.valves.ErrorDispatcherValve.custom(ErrorDispatcherValve.java:420)
at org.apache.catalina.valves.ErrorDispatcherValve.status(ErrorDispatcherValve.java:327)
at org.apache.catalina.valves.ErrorDispatcherValve.throwable(ErrorDispatcherValve.java:277)
at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:179)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:163)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:199)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:828)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:700)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:584)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683)
at java.lang.Thread.run(Thread.java:534)
----- Root Cause -----
java.lang.OutOfMemoryError
2009-07-24 18:19:22 ErrorDispatcherValve[localhost]: Exception Processing ErrorPage[errorCode=500, location=/Error.jsp]
javax.servlet.ServletException
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:249)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:684)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:432)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:356)
at org.apache.catalina.valves.ErrorDispatcherValve.custom(ErrorDispatcherValve.java:420)
at org.apache.catalina.valves.ErrorDispatcherValve.status(ErrorDispatcherValve.java:327)
at org.apache.catalina.valves.ErrorDispatcherValve.throwable(ErrorDispatcherValve.java:277)
at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:179)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:163)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:199)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:828)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:700)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:584)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683)
at java.lang.Thread.run(Thread.java:534)
----- Root Cause -----
java.lang.OutOfMemoryError
Please do help me........ how to resolve this.
Thanks.Hi,
You could try increasing the java heap size, though sometimes an issue can occur if you are trying to delete a member when a workflow process has started, do you have one running?
Cheers
John
http://john-goodwin.blogspot.com/ -
My wifi goes down at least once a day and I have to unplug the time capsule and reboot it and then it works fine. Any idea why this is happening/what I can do to fix it?
I was having this problem while still using Mavericks -- it started after a Mavericks update last spring. During the initial Yosemite beta runs over the summer, it seemed to be fixed, but after the official launch in October, I had all sorts of problems keeping connected. Its gotten a little better, but still happens to at least one of my devices every day. Weird that we still cannot figure out why the connection keeps dropping on some devices, but not others, and then the next day, one of the devices that didn't disconnect the previous day will disconnect, but the ones that did disconnect, stay connected. It's just sloppy, poorly written software for technology that isn't working the way it should. If you turn off Continuity and Handoff on all your devices, you will probably see that everything stays connected. With those turned off on all devices, TC stayed connected to everything for over a month. The day I turned Continuity back on, all the problems started again. It had something to do with the bluetooth version being used, the wifi routine, and Apple's AirPlay technology not quite getting along with each other.
-
Domain Controller going down after IDM implemented
Hi,
We have implemented IDM 7.1 and are using the PSS (Password Self Service), Password Syncronization functionality for 2 AD and 6 ABAP systems. This PSS is implemented to support our company ESS which is on the internet so that users can reset their own password. Hence to support it we have a architecture having one AD on the DMZ and another internal.
Both the AD repositories have been configured pointing to a perticular DC (Domain Contorller) . All the DC's have Phook installed on them.
Since Go-live we have not had any issue with the DC on the DMZ but the internal DC keeps going down once in a while and it doesnt have a pattern. We tried switching to different DC's also which didnt work. Right now we are keeping a close watch on the DC and we carryout a restart whenever it happens.
Did anyone come across such kind of a issue, if so then please let me know.
Thanks.Hi Ahmed,
Thank you for your quick response! Our secondary domain controller IP settings were set properly according to the recommendation, but the primary (the one having the issues) was not. I went ahead and changed the settings and did an ipconfig /registerdns
and restarted the netlogon service. Nothing changed after that. I ran a dcdiag and the only one that failed was this:
Starting test: NCSecDesc
Error NT AUTHORITY\ENTERPRISE DOMAIN CONTROLLERS doesn't have
Replicating Directory Changes In Filtered Set
access rights for the naming context:
DC=ForestDnsZones,DC=*hidden*,DC=*hidden*
Error NT AUTHORITY\ENTERPRISE DOMAIN CONTROLLERS doesn't have
Replicating Directory Changes In Filtered Set
access rights for the naming context:
DC=DomainDnsZones,DC=*hidden*,DC=*hidden*
......................... *hidden PDC Name* failed test NCSecDesc
I'm going to restart the server tonight after those IP changes and let you know my outcome.
Thanks again! -
What happens to client session when host goes down?
I have a windows 2012 R2 RDP environment. 1 Broker and 3 Session Host Servers.
My question is as follows:
User connects via broker to one of the Host servers. Host server goes down, while user is still connected. Session is written in Broker database. User wants to connect again, but broker sends him on to the server which is down and so he cannot connect.
Other situation is similar, User connects to host, administrator drains host, stopping new connections. User disconnects session, session is still in Broker, when user tries to reconnect is sent to drained server but cannot login, as he is considered new
connection.
What am I missing?
AaronHi Aaron,
Thank you for posting in Windows Server Forum.
We need to configure RDSH in a load balance farm where it can be managed by RD Connection Broker. For that we need to use DNS RR where need to make entry for all RDSH server which will be handled by RDCB Server or we can use any load balancing method to load
balance the different RDSH server and thus that connection will allow the disconnected session for reconnection and can identify the connection.
The RD Connection Broker for RDS serves the following main purposes:
• Determining the best RD Session Host server to connect to - this is based on the amount of current sessions per RD Session Host Server as a form of load balancing.
• Reconnecting a user to an existing session, in case there is one - this is called reconnecting to disconnected sessions.
• Being a resource for RD Web Access to deliver information about what Remote Apps are available on RD Session Host Servers that are a member of the broker.
More information.
Remote Desktop Server farms explained (Part 1
& Part 2) (Link is for Server 2008 R2 but it’s only for reference).
Step by Step Windows 2012 R2 Remote Desktop Services – Part 3 (For Server 2012 R2)
Hope it helps!
Thanks.
Dharmesh Solanki
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