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  1. Joined : Jan 2015
    UK, Midlands
    Posts : 6,564
    Win 10 Pro (1607)
       19 Apr 2016 #11

    Hi, correct, some people have found that, but there are various reasons this can occur, some very unclear.

    It's also true that people with other AV solutions encounter this. There's no one-size-fits-all-solution, unfortunately.

    Here's my list to date of fixes and workarounds found: Stuttering- pops crackles.doc
    Also someone has noted that disabling superfetch and bits services has helped.

    It may be that for some who find this occurs after upgrading to Win 10 that they should consider using an older driver.. which then becomes a matter of matching the Latencymon report with which driver to try replacing.

    Xperf (from MS) offers further analysis:
    Current download from here:
    Windows Performance Toolkit - Windows 10 hardware dev
    Readable description here:
    Q. Where can I download the Xperf and Xperfview tools? | Windows Server content from Windows IT Pro
    Last edited by dalchina; 19 Apr 2016 at 02:59.
      My System SpecsSystem Spec


  2. Joined : Apr 2016
    Posts : 1
    Windows 10 Pro x64
       29 Apr 2016 #12

    tsaylor said: View Post
    I've been having this same problem as well, on a Lenovo Yoga 2 Pro with Intel Wireless AC 7260. But I found a few similar threads, which included a solution related to Bitdefender, and it worked for me too! So now I'm wondering how many of you are also running Bitdefender (or possibly another antivirus solution with similar features).

    Here's what seems to have solved it for me: Within Bitdefender 2016, click the down arrow to view the Modules, choose the Firewall section, and turn off "Block port scans in the network".
    This worked for me. The higher the traffic load the longer and harder the stutters were. Unchecked Bitdefender port scan and it is working fluently. LatencyMon doesn't show any latency drops.

    Thanks for help,was a very annoying lag. Bitdefender team must fix it.
      My System SpecsSystem Spec


  3. Joined : Jan 2015
    UK, Midlands
    Posts : 6,564
    Win 10 Pro (1607)
       29 Apr 2016 #13

    pashamed said: View Post
    This worked for me. The higher the traffic load the longer and harder the stutters were. Unchecked Bitdefender port scan and it is working fluently. LatencyMon doesn't show any latency drops.

    Thanks for help,was a very annoying lag. Bitdefender team must fix it.
    I'm wondering if anyone's informing them.. they usually respond fairly quickly... it's not hard to find out how to contact them.
      My System SpecsSystem Spec


  4. Joined : Apr 2016
    Posts : 3
    Windows 10 Pro
       30 Apr 2016 #14

    tsaylor said: View Post
    I've been having this same problem as well, on a Lenovo Yoga 2 Pro with Intel Wireless AC 7260. But I found a few similar threads, which included a solution related to Bitdefender, and it worked for me too! So now I'm wondering how many of you are also running Bitdefender (or possibly another antivirus solution with similar features).

    Here's what seems to have solved it for me: Within Bitdefender 2016, click the down arrow to view the Modules, choose the Firewall section, and turn off "Block port scans in the network".
    HOLY HELL THAT DID IT!!!

    Thank you so much, had been dealing with this problem for the last few weeks and had tried everyones suggestions to no avail but disabling port scans finally fixed it. Thank you so much, I could kiss you.
      My System SpecsSystem Spec


  5. Joined : May 2016
    Posts : 1
    Windows 10 Pro 64bit
       28 May 2016 #15

    Just came across this while searching for a solution to this issue. Disabling the network scan blocking in BitDefender appears to have resolved the issue for me as well. I submitted a ticket to Bitdefender.
      My System SpecsSystem Spec


  6. Joined : May 2016
    Posts : 1
    Windows 10 64
       30 May 2016 #16

    Fixed it so far. WOW THAT was soooooooo annoying! Thank you.
      My System SpecsSystem Spec


  7. Joined : Jun 2016
    Posts : 1
    Windows 10 Pro
       10 Jun 2016 #17

    tsaylor said: View Post
    I've been having this same problem as well, on a Lenovo Yoga 2 Pro with Intel Wireless AC 7260. But I found a few similar threads, which included a solution related to Bitdefender, and it worked for me too! So now I'm wondering how many of you are also running Bitdefender (or possibly another antivirus solution with similar features).

    Here's what seems to have solved it for me: Within Bitdefender 2016, click the down arrow to view the Modules, choose the Firewall section, and turn off "Block port scans in the network".

    Hi tsaylor, I just made an account this very moment to THANK YOU for solving this problem!!!!!!

    THANKS SOOOOOOOOOOOOOO MUCH!!!

    OMG you have no idea how much this issue was driving me mad the last few weeks!!!! I was going insane!!! Tried everything from patches to driver updates, downgrades, etc - and was on the cusp of formatting my entire system!!!

    Thanks again you are a legend!!!!
      My System SpecsSystem Spec


  8. Joined : Jun 2016
    Posts : 1
    Windows 10
       11 Jun 2016 #18

    Omg you fixed it! Thank you thank you thank you thank you thank you


    tsaylor said: View Post
    I've been having this same problem as well, on a Lenovo Yoga 2 Pro with Intel Wireless AC 7260. But I found a few similar threads, which included a solution related to Bitdefender, and it worked for me too! So now I'm wondering how many of you are also running Bitdefender (or possibly another antivirus solution with similar features).

    Here's what seems to have solved it for me: Within Bitdefender 2016, click the down arrow to view the Modules, choose the Firewall section, and turn off "Block port scans in the network".
    I CANT BELIEVE it was BitDefender the entire time. the stuttering problem seriously made me want to blow my brains out. I want to join the other poster in tag-teaming you right now.

    If you have a paypal or btc wallet I want to forward you $20, seriously. Let me know.

    No joke, I almost bought a $2k Mac Desktop because of this problem. How the hell did you figure out that it was Bitdefender causing the problem? That was NOWHERE on my radar. I tried different browsers, drivers, clean install, disable hardware acceleration, everything. God...what a relief!

    From the bottom of my heart. THANK YOU
      My System SpecsSystem Spec


  9. Joined : Aug 2015
    Posts : 6
    Windows 10 Home
       13 Jun 2016 #19

    tsaylor said: View Post
    I've been having this same problem as well, on a Lenovo Yoga 2 Pro with Intel Wireless AC 7260. But I found a few similar threads, which included a solution related to Bitdefender, and it worked for me too! So now I'm wondering how many of you are also running Bitdefender (or possibly another antivirus solution with similar features).

    Here's what seems to have solved it for me: Within Bitdefender 2016, click the down arrow to view the Modules, choose the Firewall section, and turn off "Block port scans in the network".

    You sir have saved my sanity !! So far turning off the Port Scans option in BitDefender seems to be working.
    I test-downloaded a big file earlier, went into a game and there was no frame-rate stop or game stutter.

    This as been doing my head in for months now. Thank you so much for solving it !!
      My System SpecsSystem Spec


  10. Joined : Oct 2016
    Posts : 2
    Windows 8.1
       04 Oct 2016 #20

    MY SOLUTION:

    I can confirm that changing the Default Format option alleviated the issue in my case but has not solved it completely. I'm using Windows 8.1, Realtek onboard sound and drivers. It appears that setting the highest available format quality results in least frequent stuttering, however in my case, at the below cited selected format, the stuttering is still present at times.

    Go: Control Panel > Sound > Playback > Speakers (or your preferred sound output device) > Properties > Advanced > Here change Default Format to: 24 bit 192000 Hz (Studio Quality) > Click Apply

    MY SOLUTION:

    I can confirm that changing the Default Format option alleviated the issue in my case but has not solved it completely. I'm using Windows 8.1, Realtek onboard sound and drivers. It appears that setting the highest available format quality results in least frequent stuttering, however in my case, at the below cited selected format, the stuttering is still present at times.

    Go: Control Panel > Sound > Playback > Speakers (or your preferred sound output device) > Properties > Advanced > Here change Default Format to: 24 bit 192000 Hz (Studio Quality) > Click Apply

    New information: Choosing a lower quality Default Format - 16 bit 48000 Hz (DVD Quality) has solved the issue completely. If you are an audiophile or get a compulsive nagging sense of unease when you feel things aren't perfect, this solution might not be for you. I however am enjoying it.
      My System SpecsSystem Spec


 
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