DPC Latency issues using wired or wireless adapters

I am experiencing terrible audio popping and skips on my HP Desktop when playing iTunes music or watching a video streamed from the internet.  I used the DPC Latency Checker and discovered that both the wired LAN adapter and wireless adapter were causing the problem. When I go into Device Manager and disable the drivers for both adapters the problem goes away.  When I enable either driver the problem comes back.  It's definitely being caused by the network adapter drivers.  I've enabled/disabled all the other drivers on my PC and its pointing to the network adapters. But the network adapters are from different manufacturers.  Realtek for the wired and Ralink for the wireless.  I've updated both drivers and it didn't fix the problem.  My only conclusion is both adapters must be connected to the motherboard and something within the mohterboard is causing the problem. If anybody as some feedback it would be greatly apprecaited.  I don't want to buy another PC.  But I can't seem to solve the problem.

Hello , I have read your post on how your desktop computer is experiencing an audio popping and skipping sound when playing iTunes music or streamed videos, and I would be happy to assist you in this matter! Since you have already re-installed the audio drivers for your computer, I recommend returning your system back to a previous restore point before the issue occurred. This can be done by following the steps in this document on Using Microsoft System Restore (Windows 7).
Should the problem continue, I suggest performing a backup and recovery of your operating system. This can be done by following the steps in this resource on Backing Up Your Files (Windows 7), as well as Performing an HP system recovery (Windows 7). This should return your system back to factory defaults.
If the issue continues, please contact our technical support for further assistance in this matter by clicking the link below to get the support number for your region.
www.hp.com/contacthp/
I hope this helps!
Regards

Similar Messages

  • VLC audio problems on T400 - DPC Latency Issue?

    Hi Folks,
    When I try to use VLC player to play any video on my T400, I get audio stutters and other strange effects.  I'm wondering if it might have to do with all the audio DPC Latency issues this model has had.  Does anyone else have these issues?  Windows media player seems to work just fine, by the way.  DPC Latency is high when either program is playing, but remains high when VLC has paused playback (whereas windows media player doesn't induce high DPC Latency when paused).
    I've tried tweaking the buffer of VLC player, and a million other things, but nothing seems to help.  Hence my suspicion of DPC Latency issues.
    Thanks,
    Allie
    2764-CTO, Win XP Pro SP3, 2.8 GHz Dual Core, 3 GB Ram, 320 GB HDD, ATI Radeon 3450 w/ 256 MB, all drivers updated

    Just upgraded to Win 7, and the problem's gone. Must be an XP driver of some sort.

  • *Solved* MSI P43 Neo-F DPC Latency Issue - Latest BIOS Fix

    Hi, I'd like to avail of the latest BIOS fix for the DPC latency problem on my MSI P43 Neo-F (MS-7519) 1.0.
    I'm currently using BIOS 1.9, I haven't flashed to 1.A yet. Does 1.A include a fix or is there another BIOS that's as up-to-date as 1.9 or 1.A that would have the fix, with any links to download? I'm thinking along the lines of the A7519ICI.1xx series, whatever is the latest.
    Thanks in advance.
    EDIT: I have contacted MSI at http://ocss.msi.com.tw/
    I don't suppose there is any links to the latest A7519ICI.1xx BIOS that I can avail of outside of the private MSI FTP server?

    Thanks all for the advice.
    OK, so here's the story. I couldn't relax with those voltages showing up as they were, so I flashed my BIOS to A7519IMS.1A0 (1.A), which is the latest public release for the P43 Neo-F. I was previously on A7519IMS.190 (1.9) before today.
    When I flashed to A7519ICI.104, I noticed the version number was actually 1.10B4 (which I'm guessing can actually be expressed as 1.AB4 - a beta version for the latest public release, 1.A). The flash to A7519ICI.104 solved the DPC Latency issue, as when I used A7519IMS.190 (1.9) it was spiking.
    There is a happy ending. The flash to A7519IMS.1A0 (1.A) has also shown no spikes in the DPC Latency test. It seems the fix must be present in the latest public release BIOS for the P43 Neo-F after-all!
    This screen-shot was taken just a moment ago, proof that the issue has been resolved without a modified BIOS:
    Hope this helps anyone else out who is using the same motherboard and experiencing the same issues. Just get the latest public BIOS. No hassle!
    http://www.msi.com/index.php?func=downloaddetail&type=bios&maincat_no=1&prod_no=1484
    Please make sure that your motherboard is in-fact the MSI P43 Neo-F (MS-7519) before you flash the BIOS with any of the ones contained within the link above

  • DPC Latency issue, need to update BIOS?

    I'm into recording music and latency is of great importance. I did a DPC latency check and noticed I was getting some major peaks, constantly. I tried everything, removing sound card, disabling drivers, etc, etc and nothing works. Then I did a google search and found this: https://forum-en.msi.com/index.php?topic=125206.0
    I have...
    Model name: 7519 v1.0
    M/B ERP Version: 06
    I have NEVER flashed BIOS before and have no idea how to do it. I don't even have a floppy drive. I really need to fix this latency issue though, otherwise I will have to buy a new computer :(
    Can someone help me? I sent en inquiry to the support, but did not get a reply.
    Thank you.

    Quote from: Jack on 29-March-11, 00:00:44
    What is the model name of your mainboard?  There are many MS-7519 mainboards with different PCB and ERP numbers (your ERP number is incomplete, there must be three digits):
    http://eu.msi.com/service/search/?kw=7519&type=product
    The best way to approach this, is to check your current BIOS Version as displayed on the P.O.S.T. Status Screen:
    Write down the full BIOS ID String as it appears in the red box in the example picture.  When we know the BIOS Version, it is possible to check whether or not there is Latency Fix for your board out there or not.
    Have a look here and make yourself familiar with our MSI HQ Forum USB Flashing Tool:  >>Use the MSI HQ Forum USB flasher<<.

  • Serious DPC latency issues with Xbox One Controller

    Not sure if this is the right forum for it, but I'm hoping...
    I recently got an Xbox One Controller (with a USB cable for Windows), and installed the x64 drivers for them. I've been using it for a while with no problem, however I recently had to reinstall Windows 7 due to an NVidia driver issue. I am now seeing some
    issues with certain games, notably Elite Dangerous and Lord of the Rings Online (which doesn't even use a controller) while my Xbox One controller is plugged in. Terrible lag, sound cutting out. I used DPC latency checker and found that it was spiking bad.
    Using LatencyMon I found that USBport.sys was the culprit. I unplugged the Xbox One controller and it was gone. 
    Here's the catch, I know it's not the USB port or an IRQ issue because if I plug in my Thrustmaster T-Flight HOTAS X to the same port, using the same IRQ, etc. I do not experience any issues. This is related ONLY to the Xbox One controller. Why would the
    One controller cause this, and is there anything I can do to fix it? I have looked everywhere. 
    My PC specs are:
    Windows 7 x64 Ultimate
    Intel i7-2600k OC @ 4.2ghz
    16gb DDR3 ram @ 1600mhz
    Nvidia GTX 770 OC 4gb
    MSI z68a-gd65(g3) motherboard
    HT Omega Claro Halo soundcard
    Any help would be appreciated, Thanks!
    Edit: I actually had to disable HPET in my bios to even run LOTRO or it would crash my PC, that was until I found out it was the One controller that was causing it.

    Hi Marcus,
    Considering this issue occurred after reinstalling the machine, please ensure your system is update to date.
    Since you have caught the culprit with the LatencyMon, have you tried to update the USB controller or reinstall the USB controller to have a check .
    Apart from this ,is the One Controller Driver a manufacturer driver ? If it isn`t official driver ,I recommend you to download the driver from the manufacturer website.
    Best regards
    Hi MeipoXu, 
    Thanks for the reply. :) I've been scratching my head with this issue.
    I've got all updates done and I used the official x64 Xbox One controller driver from Microsoft. Also have tried update, reinstall the USB controllers under device manager, even tried replacing usbport.sys with a friends copy but they were identical. 
    What's interesting to note is that this doesn't happen in all games, only certain ones. Since I haven't played either of those games I mentioned after I got the One controller and before the reinstall, I have no clue if it had anything to do with the reinstall
    or if it's just an issue with the controller. I posted on those games forums and did not get any replies.
    I did notice a lower DPC latency when I plugged the controller into my third-party USB 3.0 controller ports, but it was still spiking up into the reds consistently. I also went as far as to unplug ALL other USB devices, including my mouse and keyboard to
    see if that made a difference, and it didn't. Nothing else does this, only the One controller. I'm at a loss. =/ 

  • P45D3 DPC Latency Issues

    I just submitted a Customer Service request. 
    I see this has been an issue with other MSI P45 MB's.  This system is purpose-built for recording,  the spikes negatively affect my ability to record at low buffer settings.  Otherwise, everything is perfect-very nice MB.  Here's hoping they have a custom BIOS to fix this.
    MSI P45D3, Intel Q6600, Scythe Zipang SCZP-1000 cooler, 4GB Patriot PVS34G1333LLK, PowerColor HD4650,  Thermaltake ToughPower 750, LiteOn 22x SATA DVR-IHAS422-08, WD VelociRaptor 150GB (system drive), Seagate 500GB (data), Seagate 1TB (audio drive), ADS Pyro 1394 card, XP Pro SP3. Rack case.  Presonus Firestudio 26x26 & MSR, Presonus Digimax FS, Lucid GENx6-96 Word Clock,  and more...

    Quote from: Thirteen on 11-February-09, 17:44:24
    Is this a beta or a public BIOS?
    When did you submit the request? (nothing happened with mine for the P45 Neo3 latency issue yet)
    I submitted my issue to customer service  (http://ocss.msi.com.tw/) on 9FEB.   I received a reply 10FEB.   The BIOS file has been on their ftp site since 23DEC08.  It is not the public BIOS (1.6) available for download on MSI web site.
    There is a BIOS I believe is for for your board with the same file name type as the one I used on the ftp site.  Mine was A7513ICI.101.   There is an A7514ICI.101 here: ftp://ftp.msi.com.tw/BIOS/7514/.   Up to you if you want to chance it.   
    DL USBoot.rar from here: ftp://ftp.msi.com.tw/Tools/  follow directions to make bootable USB flash drive.   I  DL  AFUWIN from here:  http://www.ami.com/support/bios.cfm and found the newest version of AFUDOS.exe in one of the folders and put that on my bootable USB stick.  The version MSI provided would not work for me.  Change boot order to USB 2.0 first.  Once booted on USB stick syntax I used was: afudos /i(BIOS filename) -no parenthesis when entering in DOS -  at first it gave me an error but then it quickly proceeded to execute.  I'd back up your current BIOS just in case.
    Good luck.

  • MSI P45 Neo3 DPC Latency issues

    Hi guys. I'm on a MSI P45 Neo3 and so far everything's good. The only thing wrong is the high memory latencies I'm seeing in the DPC latency program + programs sometimes taking too long to load or start up etc.
    My motherboard is MSI P45 Neo3 - MS-7514 V1.0
    Is there any beta BIOS I can try to fix this problem for my motherboard?

    My configuration:
    Antec Midi Tower Sonata III Life Style ATX 500W
    Arctic Processor cooler F7-PRO
    Asus PCI-e Radeon HD3450 256MB Silent DVI/HDCP videocard
    Intel Core 2 Duo E8400 3.00GHz 1333 6MB Boxed (C0 I think)
    LG DVD-/+/RAM GH20NS10 20x/20x/12x Bulk
    Logitech MX518 Optical Mouse (connected via PS/2)
    Microsoft Digital Media Pro Keyboard (connected via PS/2)
    MSI P45 NEO3-FR iP45 (PCB 1.0)
    NEC Floppydrive 1,44MB 3,5"
    OCZ 2x2GB DDR2 SDRAM PC6400 CL5.0 Platinum (in dual channel mode)
    Samsung 640GB SATA300 16MB, HD642JJ (in RAID "prepared" mode)
    Sweex Card Reader CR005V2 All-in-1 Intern 3,5" USB2.0
    All running their latest firmware/BIOS and drivers as far as I know.
    The system uses default BIOS (v1.6) settings, no overclocking at all.
    Where should I start my investigation?
    Disable software, drivers, or hardware?
    Any suggestions on which particular item?

  • A very strange wired and wireless network issue

    Hello,
    I have never had any issue at all with my macbook (2008) until this week, I use it both for work and personal use.
    Most of time, I'm used to be on customer site, so I use wired and wireless connections depending of the situation....
    I have never had any issue at all with wifi neither ethernet connections during three years, until this week... and I can say this is the most strange thing I have ever seen....
    Using wired or wireless connection, always the speed of network was really good, at home, many customers, etc never had any problem...
    But this week I'm currently out of home, and the hotel where I'm staying I'm having very poor network rate....
    Using wireless connection, the download speed is no more than 10kb.... and using ethernet I get less speed... but during the day I'm on customer site, using the ethernet connection and download speed is really good, more than 500k-800k....
    I have already tried in the hotel few wifi connections (there are three) and differents wired connections (in diferent rooms) and the download speed is always the same, no more than 10kb...
    During this afternoon, I could go into hotel's lab and could connect directly to the router using cable, same speed no more than 10kb....
    The most strange thing is on their computers the download speed using wired connection is around 6Mb....
    how is possible I'm getting no more than 10kb of download speed when the pc's at hotel using same wired connection gets 6Mb?
    I have already deleted current network connections, execute onyx to clear everything, perform dhcp connection, tried manual ip etc, and always the results are the same...
    I know there is no problem with the macbook, because it works pretty good at every location I've been... but until this week...
    Sincerely I'm getting a little crazy here, I'll appreciate any help!!!
    thanks in advance

    I've seen something like this on my T400 when it was running Vista.  Now that I use Win 7 it's been OK. I rather doubt that your issue is the same but I'm tossing it out here just on the off chance.
    Im my case, I had to downgrade my Intel 5300 card to a 5100 (as suggested by a Lenovo 2nd-tier tech) to get things working.
    My symptoms were a little different.  Wifi was fine until I went back to a wired network.  After that, trying to use the same wifi AP as before would end up associated, but no internet access.  DHCP wasn't working.  The GUI "find" app didn't work as expected either.  Some APs showed up, and some didn't.
    If I configured for automatic connection to my home AP it would try and fail.  Just rebooting at that point would again attempt an automatic connection that would succeed.
    What I have noticed now that I run Win 7 is that Access Connections is completely useless.  Often the "finder" doesn't show an AP 3 feet away.  I didn't notice that this happened after a switch from wired, but maybe.
    Are you using Access Connections?  If so, you might try uninstalling it.
    Sorry I can't be of real help,
    Z.
    The large print: please read the Community Participation Rules before posting. Include as much information as possible: model, machine type, operating system, and a descriptive subject line. Do not include personal information: serial number, telephone number, email address, etc.  The fine print: I do not work for, nor do I speak for Lenovo. Unsolicited private messages will be ignored. ... GeezBlog
    English Community   Deutsche Community   Comunidad en Español   Русскоязычное Сообщество

  • Can I use powerline wireless adapters with airport extreme

    can I use power line wireless adapters with airport extreme?

    Can this work?
    Yes
    I read somewhere that powerline adapters are not compatible with Airport.
    That information is not correct.
    If the AirPort Extreme is already set up as your "main" router, you would connect a short Ethernet cable from one of the LAN <-> ports on the Extreme to the power line adapter.
    Locate another adapter in the area where you want to use the AirPort Express and connect a short Ethernet cable from the adapter to the Express.
    Configure the Express to "create a wireless network" using the same wireless network name, same security settings and and same password as the AirPort Extreme network and select the Bridge Mode setting for the Express so that it work correctly on the network.

  • Mouse skipping- Wired and wireless, Snow Leopard and Lion

    We purchased a new Mac Pro last year and from the beginning have had issues with the mouse skipping around while in use. Issue is intermittent. Exists whether using wired or wireless mouse and present in both of the two user profiles that we have set up. Initially we were running Snow Leopard, and now have upgraded to Lion - which hasn't made any difference. All updates have been installed.
    I've tried resetting the SMC, PRAM and trashing preferences. Hardward test resulted with: 4VDC/1/40000003: VideoController 
    Could an issue with the video controller be causing this?
    I've read a lot of discussions with various mouse issues that are similar - yet no clear resolutions.
    HEEEEEEELLLLLLLLP!
    Specs:
    Mac Pro - Mid 2010
    3.2 GHz Quad-Core Intel Xeon
    16 GB 1066 MHz DDR3 EEC
    ATI Radeon HD 5770 1024 MB
    Mac OS X Lion 10.7.4 (11E53)

    I plan to definitely have that checked out - but the machine is currently in high demand and if that is not related to the mouse issue, it will be tough to take it out of service at the time.
    Do you have any idea if the video controller issue could cause this mouse issue?
    Thanks for the comment.

  • File sharing -- wired vs. wireless

    Hi all!
    I have having odd behavior with a WRT54G router (v5). I have set up Windows XP file/print sharing over NetBEUI (TCP/IP sharing is disabled). It works fine when all devices are plugged into the router. When I unplug my laptop and use the wireless, it can't see the other machines nor be seen by them. All other communication works fine.
    AP Isolation is OFF on the router. Is there some other feature that would block NetBEUI between the wired and wireless sides? I had a v3.1 router until about 3 weeks ago and all of the sharing worked fine...
    Thanks!
    /gary kessler

    Hi.
    Thanks for the replies....
    My experience has been that NetBEUI works fine over a WLAN; in fact, it worked on my v3.1 router. (And I can't think of any reason that it wouldn't work over any kind of broadcast LAN as long as there was no routing...)
    I don't use TCP/IP because I don't want sharing enabled over the Internet. I use NetBEUI at home and don't want to worry about sharing accidently getting routed somewhere and I don't want to have to reconfigure my system everytime I leave home and jack into a foreign network, e.g., work (which I do frequently).
    Both wired and wireless adapters are set for NetBEUI, sharing is bound to NetBEUI (and unbound from TCP/IP), and firewalls were off on all computers for testing.... although, if the wired sharing worked there's no reason that the wireless shouldn't because the other computers don't know how I am accessing the router!
    This is what makes me think that there's something in the router that is blocking the traffic from the wireless side to the wired ports...
    I have uninstalled NetBEUI from the laptop, including removing the registry keys, then reinstalled.... still, sharing works fine when I am plugged into the router but fails when I use wireless.....
    Thanks again...
    /kess

  • DPC latency

    First of all I would like to say hello to HP community.
    I have HP CQ71 laptop and experiencing serious DPC latency issue. While running DPC latency checker I receive >20000us latency what causes sound cracks. Tried to turn off ethernet / wifi / modem / other devices, but still no help. I have somehow decreased latency whit disabling Windows sounds, but still sometimes DPC latency peeks at ~20000us. Tried uninstalling antivirus, turning off firewall but still the same.
    Please help me solving this issue. Thank you in advance.
    My company dell didn't have any of this problems.

    Yes, I have this same problem with my:
    HP Pavillion DV-6
    4GB DDR3 RAM
    500 GB - 7200 RPM disk
    and have been going around in circles for weeks trying everything the "experts" have suggested with no change at all. In fact, I've disabled EVERY driver and my DPC latency still spikes at over 20,000 microseconds.
    In my case, I'm trying to record audio using a Line 6 UX-1 USB sound capture card. Whether or not this is attached, my DPC Latency checks peak at ~20,000. Needless to say, anything approaching this causes the recording to drop. VERY FRUSTRATING when I have spent 20 minutes getting my guitar tuned, warming up, getting just the right feel, then turn on "RECORD" and it works... for about 3 minutes, then the device just drops out... usually just as I'm feeling good about how it's going. Please... no advice about ASIO drivers, USB stuff, etc... With no audio recording software or hardware in play, the latency on this machine is through the roof!
    Luckily, I bought this from Costco and can return it for a full refund. I'll try a Dell next and see if the problem follows the manufacturer (HP) or the o/s (Microcrap) . In that way, I'll make my way through all the hardware that Costco sells and report back here in a couple of weeks.

  • Very High DPC Latency

    I've been searching for months, i haven't found a solution. I have a dell 14r, and i've got very high dpc latency, i've disabled Intel speed step, i don't know if it was the cause, but helped a little, but a still have some high DPC.
    here's the DPC  Conclusion
    CONCLUSION
    Your system seems to have difficulty handling real-time audio and other tasks. You may experience drop outs, clicks or pops due to buffer underruns. One problem may be related to power management, disable CPU throttling settings in Control Panel and BIOS setup.
    Check for BIOS updates. 
    LatencyMon has been analyzing your system for  0:00:50  (h:mm:ss) on all processors.
    SYSTEM INFORMATION
    Computer name:                                        ALEF
    OS version:                                           Windows 8 , 6.2, build: 9200 (x64)
    Hardware:                                             Inspiron 5437, Dell Inc., 01PN4H
    CPU:                                                  GenuineIntel Intel(R) Core(TM) i5-4200U CPU @ 1.60GHz
    Logical processors:                                   4
    Processor groups:                                     1
    RAM:                                                  6048 MB total
    CPU SPEED
    Reported CPU speed:                                   1596,0 MHz
    Measured CPU speed:                                   180,0 MHz (approx.)
    Note: reported execution times may be calculated based on a fixed reported CPU speed. Disable variable speed settings like Intel Speed Step and AMD Cool N Quiet in the BIOS setup for more accurate results.
    WARNING: the CPU speed that was measured is only a fraction of the CPU speed reported. Your CPUs may be throttled back due to variable speed settings and thermal issues. It is suggested that you run a utility which reports your actual CPU frequency and temperature. 
    MEASURED INTERRUPT TO USER PROCESS LATENCIES
    The interrupt to process latency reflects the measured interval that a usermode process needed to respond to a hardware request from the moment the interrupt service routine started execution. This includes the scheduling and execution of a DPC routine, the
    signaling of an event and the waking up of a usermode thread from an idle wait state in response to that event.
    Highest measured interrupt to process latency (µs):   1572,913052
    Average measured interrupt to process latency (µs):   22,366048
    Highest measured interrupt to DPC latency (µs):       1565,856753
    Average measured interrupt to DPC latency (µs):       11,824275
     REPORTED ISRs
    Interrupt service routines are routines installed by the OS and device drivers that execute in response to a hardware interrupt signal.
    Highest ISR routine execution time (µs):              364,749373
    Driver with highest ISR routine execution time:       ndis.sys - NDIS (Especificação de Interface de Driver de Rede), Microsoft Corporation
    Highest reported total ISR routine time (%):          0,106754
    Driver with highest ISR total time:                   ndis.sys - NDIS (Especificação de Interface de Driver de Rede), Microsoft Corporation
    Total time spent in ISRs (%)                          0,133510
    ISR count (execution time <250 µs):                   21131
    ISR count (execution time 250-500 µs):                0
    ISR count (execution time 500-999 µs):                3
    ISR count (execution time 1000-1999 µs):              0
    ISR count (execution time 2000-3999 µs):              0
    ISR count (execution time >=4000 µs):                 0
    REPORTED DPCs
    DPC routines are part of the interrupt servicing dispatch mechanism and disable the possibility for a process to utilize the CPU while it is interrupted until the DPC has finished execution.
    Highest DPC routine execution time (µs):              747,735589
    Driver with highest DPC routine execution time:       ndis.sys - NDIS (Especificação de Interface de Driver de Rede), Microsoft Corporation
    Highest reported total DPC routine time (%):          0,297310
    Driver with highest DPC total execution time:         ndis.sys - NDIS (Especificação de Interface de Driver de Rede), Microsoft Corporation
    Total time spent in DPCs (%)                          0,652473
    DPC count (execution time <250 µs):                   263660
    DPC count (execution time 250-500 µs):                0
    DPC count (execution time 500-999 µs):                253
    DPC count (execution time 1000-1999 µs):              0
    DPC count (execution time 2000-3999 µs):              0
    DPC count (execution time >=4000 µs):                 0
     REPORTED HARD PAGEFAULTS
    Hard pagefaults are events that get triggered by making use of virtual memory that is not resident in RAM but backed by a memory mapped file on disk. The process of resolving the hard pagefault requires reading in the memory from disk while the process is interrupted
    and blocked from execution.
    NOTE: some processes were hit by hard pagefaults. If these were programs producing audio, they are likely to interrupt the audio stream resulting in dropouts, clicks and pops. Check the Processes tab to see which programs were hit.
    Process with highest pagefault count:                 explorer.exe
    Total number of hard pagefaults                       1115
    Hard pagefault count of hardest hit process:          493
    Highest hard pagefault resolution time (µs):          12225544,827694
    Total time spent in hard pagefaults (%):              247,355044
    Number of processes hit:                              22
     PER CPU DATA
    CPU 0 Interrupt cycle time (s):                       0,761402
    CPU 0 ISR highest execution time (µs):                331,166667
    CPU 0 ISR total execution time (s):                   0,090588
    CPU 0 ISR count:                                      7756
    CPU 0 DPC highest execution time (µs):                678,561404
    CPU 0 DPC total execution time (s):                   0,432507
    CPU 0 DPC count:                                      129558
    CPU 1 Interrupt cycle time (s):                       1,093584
    CPU 1 ISR highest execution time (µs):                364,749373
    CPU 1 ISR total execution time (s):                   0,177768
    CPU 1 ISR count:                                      13378
    CPU 1 DPC highest execution time (µs):                650,636591
    CPU 1 DPC total execution time (s):                   0,566066
    CPU 1 DPC count:                                      21399
    CPU 2 Interrupt cycle time (s):                       1,091097
    CPU 2 ISR highest execution time (µs):                0,0
    CPU 2 ISR total execution time (s):                   0,0
    CPU 2 ISR count:                                      0
    CPU 2 DPC highest execution time (µs):                747,735589
    CPU 2 DPC total execution time (s):                   0,292306
    CPU 2 DPC count:                                      112231
    CPU 3 Interrupt cycle time (s):                       0,461547
    CPU 3 ISR highest execution time (µs):                0,0
    CPU 3 ISR total execution time (s):                   0,0
    CPU 3 ISR count:                                      0
    CPU 3 DPC highest execution time (µs):                338,436090
    CPU 3 DPC total execution time (s):                   0,020591
    CPU 3 DPC count:                                      725

    Hi,
    Please refer to the article below:
    http://blog.tune-up.com/windows-insights/title-poor-jerky-performance-fixing-unacceptably-high-dpc-latency-issues/
    Andy Altmann
    TechNet Community Support

  • Wired or wireless for Hopper DVR?

    We have an Airport Express, 2 iPads, an iPhone, Apple TV, Hopper DVR with Sling, wireless printer, and two pcs.
    My wife uses her iPad a lot to stream TV shows that are on the DVR (or live) to the iPad.
    That works great.
    Currently I have the Hopper DVR hard wired into the WAN port of the AE.
    Does that make a lot of difference? I did that thinking that when the DVR was streaming to
    the wireless iPad that there would be more bandwidth available on the wireless side.
    I'm assuming all the data has to be received by the router from the DVR and the transmitted
    to the iPad over wireless. And my thought was if they were both on wireless that same data
    (which is a lot) would be going across two times.
    Thanks for any thoughts!

    Yes, they do. If you have to choose, use wired over wireless wherever practical. Even with an 802.11n wireless connection, the performance of the wired connection will be better (much less latency).

  • Problem with WRT160NV2, both wired and wireless...

    I bought a WRT160NV2 Refurbed from CompUSA about 2 weeks ago, and since then I've been having some problems.
    It's not every site, but there are a few sites (three or four I've noticed)  that load very, very, very slowly. It happens using wired or wireless (Main PC is wired). I've tried rebooting both the router and modem multiple times (10 or 20 times at least) and looked through the forums and noticed some people said try setting the MTU to 1300. I tried that and it didn't seem to do anything, so I tried 1350, 1400, 1450, 1490, and 1100, with no results with either. When I connect using just my modem everything works fine. I'm frustrated because I can't find a solution to this. Any help would be appreciated. 
     Firmware Version: v2.0.03 build 007 ;Jul 2, 2009
    Message Edited by RagingShadow07 on 02-27-2010 01:48 PM

    Since you have already changed the MTU size on your Router and still facing the same problem, then i think you need to Re-flash / Upgrade the firmware of your Router...
    Download the firmware from the Linksys website and then upload the firmware on your Router... Once the firmware is upgraded on your Router, then you need to reset the router and re-configure all the settings on it again... 

Maybe you are looking for