Windows 10: How can I discover what app/process is stealing my bandwith (W10 Home)

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  1. M4v3r1ck's Avatar
    Posts : 632
    Win 10 Pro x64 1607 (Build 14393.953)
       25 Jan 2017 #11

    BobSter2 said: View Post
    THanks, already using the "Process Explorer" part of that (which unless I'm mistaken is more for CPU usage than network traffic). I will give the full suite a look!
    Yes you can! To check what's eating your bandwidth you need to download the full suite and use the TCPVIew! Hope this helps you to tackle your issue. Good luck.

      My ComputerSystem Spec

  2.    25 Jan 2017 #12

    dalchina said: View Post
    You could try launching e.g. Sysinternals TCPView at logon as a scheduled task - run it manually first to get a feel. There may be some other tool in the suite- it's extensive.

    As per my #8.

    Yer, I looked at that, but I couldn't see how it would help me. It shows me the Process ID of the svchost.exe that is generating the traffic (which I already know from two other sources) and the ten-ish ips which is connecting to, but not which of the 16 underlying Services [AppInfo][Browser][DoSvc][ifsvc][iphlpsvc][RasMan][Lanman Server][SENS][ShellHWDetection][Themes][Schedule][ProfSvc][UserManager][WpnService][Winmgmt] is generating the traffic.

    TCPView only gives me options to close each connection (which just pops back up a minute later), or kill the (entire) Process (which presumably includes all 16 Services). Doing so kills the whole dial-up connection (which is presumably not surprising as Service "RasMan" (which runs the modem) has been stopped).

    How would TCPView help me identify the (root) source of the traffic (and stop it) please ?
      My ComputerSystem Spec

  3.   My ComputerSystem Spec

  4.    27 Jan 2017 #14

    OK, I have found the source. It seems to be originating from
    -svchost.exe launching Task Scheduler
    -Task Scheduler launching Scheduled Start (sc.exe)
    -Scheduled Start launching Windows Updates

    (despite Windows Updates supposedy being disabled entirely or disabled when a only a Metered Connection is present).

    So, I have disabled these tasks in :
    Task scheduler>WindowsUpdate>Automatic App Update (Windows Store apps)
    Task scheduler>WindowsUpdate>Scheduled Start (sc.exe)
    Task scheduler>WindowsUpdate>Scheduled Start With Network (sc.exe)
    Task scheduler>WindowsUpdate>sih (server initiated healing (sihclient.exe))
    Task scheduler>WindowsUpdate>sih boot (sihclient.exe)

    which seems to have stopped it.

    Btw, it seems the PID allocation is dynamic - that stack of 16 Services has jumped around between PIDS 512, 912, 1028, 1036, 1048, 1060, 1576, 2396, 8132, over the last 2 days.

    thanks for the pointers
      My ComputerSystem Spec

  5.    28 Jan 2017 #15

    Hi, if you are struggling with Windows update, this (free, respected tweaker)may help (I suggest notify only, which I use)
    Click image for larger version. 

Name:	Snap 2017-01-28 at 08.31.58.jpg 
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      My ComputerSystem Spec

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