Drop in associated/authenticated clients every hour

Hi all.
Anyone have any suggestions as to what might be causing this:
It seems that the drops in clients occur every hour. And yes... we've got reports of unstable wireless connections, but no one reports drops every hour.
So my question is: are there any jobs on the wireless controllers or APs that execute every hour doing some kind of cleanup? This is not related to software version on the wireless controllers. Because we see the same graph on both WiSM and CT5760.

Hi again.
I don't think that PI is the source of the problem here. But I will look into it.
The reason why I don't think that PI is doing this, is that I did a SSH session to a WLC and issued a "show client summary" every minute for about 10-15 minutes. And during the time period that PI illustrates this drop in clients, I actually see a similar drop in the number of clients on the controller.
So the question then is; what can cause this and why is the drop occurring on all of our 22 WLCs at the same time?

Similar Messages

Client Association,Authentication

Hey All,
In regards to the Assoiciation and Authentication I would just like to check that I am getting the process correct:
1. Authentication( open or shared) this is the client talking to the AP and saying that it is an 802.11 device ( kind of like an ethernet cable being pluged into a wall jack), if it has a PSK then it must have the right details to Auth with the AP. This is Auth'd to the AP but not the network, so no network traffic can pass just yet.
2. Association the client associates with the BSS/AP and data can now pass over to the AP.
3. 802.1x Authentication ( EAP) - if required
In the above Image the Associated status means it passed step 2 and the Auth means in passed 802.1x?
If this is the case in the above Image the Authed clients ( blue line) are the clients that have passed 802.1x? and the red line is clients that have passed stage 2?
Thanks

Hello,
In the client association process, access points send out beacons announcing one or more SSIDs, data rates, and other information. The client sends out a probe and scans all the channels and listens for beacons and responses to the probes from the access points. The client associates to the access point that has the strongest signal. If the signal becomes low, the client repeats the scan to associate with another access point (this process is called roaming). During association, the SSID, MAC address, and security settings are sent from the client to the access point and checked by the access point. Figure 3-6 illustrates the client association process.
Figure 3-6 Client Association
A wireless clients association to a selected access point is actually the second step in a two-step process. First, authentication and then association must occur before an 802.11 client can pass traffic through the access point to another host on the network. Client authentication in this initial process is not the same as network authentication (entering username and password to get access to the network). Client authentication is simply the first step (followed by association) between the wireless client and access point, and it establishes communication. The 802.11 standard specifies only two different methods of authentication: open authentication and shared key authentication. Open authentication is simply the exchange of four "hello" type packets with no client or access point verification, to allow ease of connectivity. Shared key authentication uses a statically defined WEP key, known between the client and access point, for verification. This same key might or might not be used to encrypt the actual data passing between a wireless client and an access point based on user configuration.
http://www.ciscopress.com/articles/article.asp?p=1156068&seqNum=3

WRTP54G-NA Drops VPN connection every hour

I have a WRTP54G-NA router running VOIP for Viatalk. Connected to a ethernet port is my Juniper Netscreen VPN device used to create a VPN tunnel for work. The problem I'm having is that every 60 minutes (exactly) the connection drops and has to reestablish. The code on the Linksys is 3.1.24. If I remove the Linksys and plug the Netscreen directly into my cable modem I have no disconnects. Any ideas??

So what's the answer? I have a similar problem when playing on my Xbox 360 every hour (at the same time) the Xbox is kicked off because the modem or router resets. I have a linksys modem CM100 modem and a Linksys VIOP router from TMobile. Is there a fix for this issue? If so what is it? Thx

Wifi drop every hour

Ok so I'm trying to play my ps4 off of the linksys AC1200 MAX wifi range extender (RE6500) and I keep getting a lost connection every hour at the same time. At first I thought it was a hardware problem only because the first day I used it I never dropped and it has amazing connection. Then the next day around 1:03 I dropped then it happened again at 2:03. This irritated me I took it back thinking it was a hardware issue. I got a new one and it's doing it again but now 12:56 then 1:56. Please help me fix this. I've tried other extenders such as netgear but they fail in comparison to the kind of connection I get using the RE6500.

Move the RE6500 in a little better signal location. The router and extender should see each other at around a 70% signal strength for dependable connection.
Please remember to Kudo those that help you.
Linksys
Communities Technical Support

Solaris 10 SPARC DHCP Server causing disconnects every hour

I am using Solaris 10 SPARC (Netra X1) as a router (DHCP/NAT)
I'm running the built-in dhcp-server with the following in /etc/inet/dhcpsvc.conf
DAEMON_ENABLED=TRUE
RESOURCE=SUNWfiles
RUN_MODE=server
PATH=/var/dhcp
CONVER=1
HOSTS_RESOURCE=files
ICMP_VERIFY=false
INTERFACES=dmfe1
LOGGING_FACILITY=1
VERBOSE=TRUEI have made an entry for my MAC address
# pntadm -P 192.168.1.0 | grep 192.168.1.218
010026B9B29555 00 192.168.1.218 <MY IP> Zero UNKNOWNHowever, if I rely on DHCP I get disconnected for a few seconds every hour exactly. All my SSH connections drop and I get disconnected from any IRC server I am on.
If I set my client to a static IP this issue disappears, which leads me to believe it's DHCP who is the culprit here.
Does anyone have any suggestions? From the pntadm output "Zero" should mean the lease never expires, right?
Thanks

A 64 bit VM is not necessarily faster than a 32 bit one. I remember at least on suggestion that it could be slower.
Make sure you use the -server option.
As a guess IBM isn't necessarily a slouch when it comes to Java. It might simply be that their VM was faster. Could have used a different dom library as well.
Could be an environment problem of course.
Profiling the application and the machine as well might provide information.

After system copy, dump 'SAPSQL_ARRAY_INSERT_DUPREC' per every hour.

hi experts,
I did system copy solman 701. but I found short dump 'SAPSQL_ARRAY_INSERT_DUPREC' per every hour.
I attach part of short dump.
===============================================================================
Runtime Errors SAPSQL_ARRAY_INSERT_DUPREC
Exception CX_SY_OPEN_SQL_DB
Date and Time 2010.09.02 06:14:16
What happened?
Error in the ABAP Application Program
The current ABAP program "GP4II5O0KKJ13RR6R50N44F7KST" had to be terminated
because it has
come across a statement that unfortunately cannot be executed.
Error analysis
An exception occurred that is explained in detail below.
The exception, which is assigned to class 'CX_SY_OPEN_SQL_DB', was not caught
in
procedure "WRITE_ICFACT" "(FORM)", nor was it propagated by a RAISING clause.
Since the caller of the procedure could not have anticipated that the
exception would occur, the current program is terminated.
The reason for the exception is:
If you use an ABAP/4 Open SQL array insert to insert a record in
the database and that record already exists with the same key,
this results in a termination.
(With an ABAP/4 Open SQL single record insert in the same error
situation, processing does not terminate, but SY-SUBRC is set to 4.)
User and Transaction
Client.............. 001
User................ "SMD_RFC"
Language Key........ "E"
Transaction......... " "
Transactions ID..... "D30DB6DF06D7F16BA277005056AD47D2"
Program............. "GP4II5O0KKJ13RR6R50N44F7KST"
Screen.............. "SAPMSSY1 3004"
Screen Line......... 2
================================================================================================
I think the program GP4II5O0KKJ13RR6R50N44F7KST is related with BW.
I found information of the program GP4II5O0KKJ13RR6R50N44F7KST
Generated report : InfoCube Write
Template......: RSTMPLWIDTP
RSAUInfoCube......: 0SMD_PE2H
Author........: SMD_RFC
Date..........: 16.07.2010 18:56:23
How can I correct ?
thanks and regards
jun

hi,
thanks your reply.
I applied sapnote 1500227 but still error.
what can I do?
Regards
jun

Generating trace every hour on MMON_SLAVE error in 11g

Hi,
trace file is been generated every hour in 11g database under linux env, the following details of trace are
*** 2009-04-28 17:00:06.421
*** SESSION ID:(1613.1106) 2009-04-28 17:00:06.421
*** CLIENT ID:() 2009-04-28 17:00:06.421
*** SERVICE NAME:(SYS$BACKGROUND) 2009-04-28 17:00:06.421
*** MODULE NAME:(MMON_SLAVE) 2009-04-28 17:00:06.421
*** ACTION NAME:(Auto-Flush Slave Action) 2009-04-28 17:00:06.421
qerfxGCol:KQFDTTIM - Error converting to LdiDateArray
qerfxGCol:KQFDTTIM - Error converting to LdiDateArray
qerfxGCol:KQFDTTIM - Error converting to LdiDateArray
qerfxGCol:KQFDTTIM - Error converting to LdiDateArray
qerfxGCol:KQFDTTIM - Error converting to LdiDateArray
qerfxGCol:KQFDTTIM - Error converting to LdiDateArray
qerfxGCol:KQFDTTIM - Error converting to LdiDateArray
qerfxGCol:KQFDTTIM - Error converting to LdiDateArray
qerfxGCol:KQFDTTIM - Error converting to LdiDateArray
qerfxGCol:KQFDTTIM - Error converting to LdiDateArray
qerfxGCol:KQFDTTIM - Error converting to LdiDateArray
qerfxGCol:KQFDTTIM - Error converting to LdiDateArray
qerfxGCol:KQFDTTIM - Error converting to LdiDateArray
qerfxGCol:KQFDTTIM - Error converting to LdiDateArray
any suggestion is appreciated.

Hi,
We are getting the same in the trace file:
We are using 11.1.0.7 on Linux.
*** 2010-10-05 22:01:05.768
*** SESSION ID:(2152.1168) 2010-10-05 22:01:05.768
*** CLIENT ID:() 2010-10-05 22:01:05.768
*** SERVICE NAME:(SYS$BACKGROUND) 2010-10-05 22:01:05.768
*** MODULE NAME:(MMON_SLAVE) 2010-10-05 22:01:05.768
*** ACTION NAME:(Auto-Flush Slave Action) 2010-10-05 22:01:05.768
qerfxGCol:KQFDTTIM - Error converting to LdiDateArray
qerfxGCol:KQFDTTIM - Error converting to LdiDateArray
qerfxGCol:KQFDTTIM - Error converting to LdiDateArray
qerfxGCol:KQFDTTIM - Error converting to LdiDateArray
qerfxGCol:KQFDTTIM - Error converting to LdiDateArray
qerfxGCol:KQFDTTIM - Error converting to LdiDateArray
qerfxGCol:KQFDTTIM - Error converting to LdiDateArray
qerfxGCol:KQFDTTIM - Error converting to LdiDateArray
qerfxGCol:KQFDTTIM - Error converting to LdiDateArray
The tarce was produced when v$sga_resize_ops produced error.
select
component,
oper_type,
oper_mode,
initial_size/1024/1024 "Initial",
TARGET_SIZE/1024/1024 "Target",
FINAL_SIZE/1024/1024 "Final",
status,
to_char(start_time,'dd/mm/yyyy hh24:mi:ss'),
to_char(end_time,'dd/mm/yyyy hh24:mi:ss')
from
v$sga_resize_ops
where status = 'ERROR';
DEFAULT buffer cache GROW DEFERRED 4608 4864 4608 ERROR 05/10/2010 22:01:43 05/10/2010 22:01:43
java pool SHRINK DEFERRED 1024 768 1024 ERROR 05/10/2010 22:01:43 05/10/2010 22:01:43
Regards,
Sripad

WLC OID (snmp) for authenticated clients

I know the OID for associated users 1.3.6.1.4.1.14179.2.1.1.1.38.
But is there one for Authenticated clients? I am looking for the numbers similar to the one I can get from the report tools in WCS.
I think the number of authenticated clients is a better number than using the associated client count when talking about guest WLAN's.
Best regards,
Steffen Lindemann

Hi,
yes there is. I have created a table with solarwinds for this but they represent or provide information in diffrent way.
The table consist of
>WLAN Profile
1.3.6.1.4.1.9.9.599.1.3.1.1.3
This object specifies the WLAN Profile name
this 802.11 wireless client is connected to.
>Client Status
1.3.6.1.4.1.9.9.599.1.3.1.1.2
The object that represents the current status of the client.
>MobileStationUserName
1.3.6.1.4.1.14179.2.1.4.1.3
User Name , if any , of the Mobile Station. This would
be non empty in case of Web Authentication and IPSec.
>Client Protocol
1.3.6.1.4.1.9.9.599.1.3.1.1.6
The 802.11 protocol type of the client.
'dot11a' - The client is using 802.11a standard
to connect to the access point (AP)
>MobileStationIpAddress
1.3.6.1.4.1.14179.2.1.4.1.2
Ip address
Well the Clinet status would be represted in num value:
Client status:
4 = associated
6 = Probing
8 = Disconnected
Protocol:
1 = 802.11a
2 = 802.11b
3 = 802.11g
Hope this helps

ADFS: Event ID 684 error every hour

I set up ADFS recently. I followed the guidance for setting up for Azure, with plans to use it for other purposes.
I am seeing error 684 every hour at about :52:36 minutes:seconds after the hour, so it's regular like a scheduled task. The error text is...
The AD FS Web Agent was unable to update trust information from the Federation Service. The Federation Service Secure Sockets Layer (SSL) server certificate could not be validated.
Federation Service URL: https://localhost/adfs/fs/FederationServerService.asmx
Notice how the URL has "localhost" as the host name. My ADFS server is named adfs.company.com and has a valid SSL certificate configured. Authentication works to Azure. Going to https at localhost will of course fail because the
SSL cert will never match.
What is trying to access this every hour and why is it looking at localhost instead of the adfs.company.com host name? I can't figure this out.

Hi Timothy,
Based on my research,
Federation Service communication fails when the Active Directory Federation Services (AD FS) Web Agent cannot be updated.
Please try to check the federation server's SSL server authentication certificate.
Here is a troubleshooting article with specific steps below:
Event ID 684 — Federation Service Communication
http://technet.microsoft.com/en-us/library/cc726825(v=WS.10).aspx
If this method above couldn’t help you solve this issue, please refer to the following forum to get professional support:
Microsoft MSDN Claims based access platform (CBA), code-named Geneva Forum
http://social.msdn.microsoft.com/Forums/vstudio/en-US/home?forum=Geneva
Best Regards,
Amy Wang

Opatch process executes automatically every hour

hi,
I installed OCS10g,and patched to the last release.But it seems that opatch process executes automatically every hour,this cause a lot of files like LsInventory--xxxx.log in /OracleHome/.patch_storage folder. This always make my disk full.
How can I stop the process?
some information:
Creating log file "/OracleHome/.patch_storage/LsInventory__01-22-2006_21-03-32.log"
Accessing inventory ... (retry 10 times, delay 30 seconds each time)
Invoking command "/OracleHome/jre/1.4.2/bin/java -classpath "/OracleHome/oui/jlib/OraInstaller.jar:/OracleHome/oui/jlib/srvm.jar:/OracleHome/OPatch/jlib/opatch.jar:/OracleHome/oui/jlib/xmlparserv2.jar:/OracleHome/oui/jlib/share.jar" -Doracle.installer.invPtrLoc=/OracleHome/oraInst.loc -Dopatch.retry=10 -Dopatch.delay=30 opatch/LsInventory "/OracleHome/oui" "/OracleHome" opatch.pl 1.0.0.0.52 TRUE"
Result:
PRODUCT NAME VERSION
============ =======
ADF Business Components Config Assistant for agent 10.1.2.0.2
ADF Business Components Config Assistant 10.1.2.0.2
ADF Business Components Runtime for OracleAS 10.1.2.0.2
ADF Business Components Runtime Library 10.1.2.0.2
Advanced Queueing (AQ) API Patch 10.1.0.4.2
Advanced Queueing (AQ) API 10.1.0.2.0
Agent Required Support Files Patch 10.1.0.4.2
Agent Required Support Files 10.1.0.2.0
Apache Configuration for Oracle Java Server Pages 10.1.2.0.0
Apache Module for Oracle Distributed Authoring and Versioning 10.1.2.1.0
Assistant Common Files Patch 10.1.0.4.2
Assistant Common Files 10.1.0.2.0
Authentication and Encryption Patch 10.1.0.4.2
Authentication and Encryption 10.1.0.2.0
Bali Share 1.1.18.0.0
Message was edited by:
suoshuangyou

This is something funny. OPatch is not a deamon process. I think somewhere some cron job is set to execute OPatch every hour.
If you cannot find the problem, then the best fix is to rename the directory OPatch under Oracle Home to something else.

ISync pops up every hour: "No device activated..."

Hi,
For the last month or so, my iSync has been acting up. Every hour, it self-starts and pops up with a window that says "No device activated..." I use isync with mobile me, but that's all. I have tried turning off syncing and then turning back on, resyncing with mobile me, etc., but nothing seems to work. If you have any thoughts on how to stop this annoying issue, please help!
See a screenshot: http://gallery.me.com/kjglover#100070
Thanks,
Kyle

How would that be associated with iWeb? You should post your problem at one of the Filrefox users forums.
Firefox Forum - Firefox, The Greatest Browser on the Planet
Firefox - MozillaZine Forums
OT

APs (1242 & 1230) disassociate from WLC4404 every hour

My APs disassociate from WLC every hour, so I completly lose the connection.
0 Fri Sep 8 17:29:09 2006 AP Disassociated. Base Radio MAC:00:17:0f:da:f2:60
1 Fri Sep 8 17:29:09 2006 AP's Interface:1(802.11a) Operation State Down: Base Radio MAC:00:17:0f:da:f2:60 Cause=Unknown
2 Fri Sep 8 17:29:09 2006 AP's Interface:0(802.11b) Operation State Down: Base Radio MAC:00:17:0f:da:f2:60 Cause=Unknown
3 Fri Sep 8 17:29:09 2006 AP Disassociated. Base Radio MAC:00:11:21:7d:71:c0
4 Fri Sep 8 17:29:09 2006 AP's Interface:1(unknown type) Operation State Down: Base Radio MAC:00:11:21:7d:71:c0 Cause=Unknown
5 Fri Sep 8 17:29:09 2006 AP's Interface:0(802.11b) Operation State Down: Base Radio MAC:00:11:21:7d:71:c0 Cause=Unknown
6 Fri Sep 8 17:21:38 2006 Rogue : 00:16:46:2b:aa:10 removed from Base Radio MAC : 00:17:0f:da:f2:60 Interface no:0(802.11b/g)
somebody can help me?

I am running 4.0.179.8 and my APs do this too. I am running 1030 APs. They don't do it every hour but it is probably at least once every day or two.
When this happens I get a message for every AP Operation State Down: ... Cause = Unknown and shortly after that Operation State Up: ... Cause = Unknown.
If it was due to IP conflicts would only the APs with conflicts have problems? I am sure that there is no way that I have conflicting devices for every AP.
We are running Meditech client software on wireless laptops and every time this happens we end up with lost work and hung Meditech sessions.
I really need to get this fixed. I am beginning to regret going from Cisco 1100s to this new system.
I also get this message now and then:
AP's Interface:1(802.11b) Operation State Down: Base Radio MAC:00:0b:85:74:e9:90 Cause=Max Retrasmission
Does anyone know how to disable AP shutdown due to "Retrasmission"?

FCP7 crashes every hour on MBP9,1 an ML

Hi all,
I have had trouble with FCP7. It crashes every hour and i am working in a big project my client is being peeved so i need help please … !
I bought a new MBP9,1 because my old one is dead. First of all i recovered anything with TimeMaschine. an FCP crashed than i format the HD from my MBP an make a "clean install" from ML 10.8.2 than QT7 an Rosetta and than FCP. It works fine the next 4 hours. than i crashes … again and again. I have upgraded my MBP with 16 GB Ram … ok may be to much so i installed the original 4 GB -> and FCP7 crashed. May be the ext. FW Drive is to slow and i copyed the Data on the internal HD -> and FCP crashed. My Project is 500 GB / 220 GB with HDV Footage 200 GB with Pics from the timelabs Gopro. A sure way to crash FCP is to import a Timelabs-Pic folder (with 9999) into FCP - ok if it works without crashes than it crashes if you make a timeline.
At last FCP crashes if i am play a sub timeline,
or i will make a fast look with fast forward.
or i change the view of FCP.
If i load the Project the content in the canvas looks green or with green fine horizontal bars. So it looks like a codec error, or a grafic problem.
I dont know what to do - on my old MBP (Intel Core2 Duo 2,4 GHz / 8 GB Ram / 1 TB) FCP works fine. Unfortunately i can´t install 10.6.8 on my new MBP.
If anyone has any Idea i´ll realy realy grateful …
kind regards
Markus Klein

Hi Michael,
a good idea. The Pics are in 1920*1080 my MacMini and Photoshop was worked a few days to resize my 3-Month-every-Minute timelabs Pics so that i have finaly only 200 GB Pics. But i think my Project is to big! My FCP Project File is 157 MB!
I´ve have had a long Skpye session with a good friend who worked for the German Television in Washington, he worked with Final Cut since a few years. His Idea sounds good. I open a new Project and copy my Mastersequenze in the new Project - wow no crashes! So i copy Bin for Bin and Sequence for Sequence in the new Project. So i will see if it works.
Thanks for help Michael.

Airplay disconnects every hour

I have a late 2013 MacBook Pro running OSX Mavericks 10.9.2 connected using AirPlay to an updated AppleTV. I am NOT running battery power. Using iPhoto I am playing a slideshow on the TV. The slidewhow runs seamlessly but the AirPlay connection automatically disconnects every hour (exactly one hour).
It is not a networking issue associated with any latency or interference. There are no other devices on the wireless network; the environment is free of other sources of competing RF energy. I have no overlapping channels, competing radios or other sources of RF energy in the same frequency range (I live in the country and the nearest home is more than 1/2 mile away). There are no operating microwave ovens, bluetooth devices, cordless phones, baby monitors or other potential competitors in the area. Even if such interference were present it would not account for an interruption that occurs at exact 60-minute intervals. To further prove this I have verified that the problem still exists when connected via Cat5e.
When the AirPlay connection is broken the slideshow continues to play on the MacBook. If I stop the slideshow and re-start it the mysterious 60-minute disconnect counter does NOT reset; it still disconnects exactly one hour after the AirPlay connection started. This suggest the issue is not a timer or setting in iPhoto.
I tried unchecking the "Automatic graphic switching" box in the Energy Saver section of System Preferences but this actaully caused a random freeze in the slide show.
I suspect there is a setting somewhere that I am unaware of or have overlooked. Has anyone had this problem or can you suggest a fix? There are lots of posts on the Internet of people having AirPlay disconnect at irregular intervals but I cannot find one that addresses a non-networking-related every 60-minute disconnect.
Any insight will be appreciated.

It may be worth looking at what your DHCP lease is set for on your dhcp server. If it is set for a 1 hour lease it may be the cause. You could try setting up the ATV and the Macbook Pro with a static IP or set your dhcp lease to expire at a longer interval, say 4 hours to see if it goes longer than an hour. I have seen dhcp lease setting cause this type of problem in the past.

Macbook freezing every hour

I've had my laptop for about a year and a half now and recently its just started freezing every hour and the spinning wheel appears but i can still move the cursor, this lasts for a couple of minutes and then everything starts working fine again. I havnt dropped it or done anything different from how i usually treat it and havnt downloaded any new software recently. Anyone know what might be the problem or how I could fix it? Its pretty annoying when im trying to work.
Thanks

Open your Activity Monitor.app.
Leave it open so that you can see the contents of the window.
Now click the banner for the CPU% so that it is sorted showing the highest usage at the top of the list.
Next step, play the waiting game =) you need to make sure that you can see the list in the Activity Monitor when the time comes around that everything is freezing.
Look at the list, when it freezes up and see what is at the top of the list for CPU usage. Also note what the CPU usage is listed at. (write down the top 5 items and the cpu usage)

Drop in associated/authenticated clients every hour

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