nsurlsessiond constantly downloading

Hi,
im having an issue with xcode 10 simulators,

since i removed xcode 9 and installed xcode 10, when ever i run a simulator it starts a nsurlsessiond and it downloads until i turn of the internet or close the simulator it dosent mater wich devices im using in the simulator, the process always stars and downlaods.

The worst part is that i use limited data per month and if this continues my data will be finished soon.

So i wanted to know what can i do to stop it?

i tryed other people solution to check the icloud, so i checked and i dont use icloud.


Thank you

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MrIn
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  • have the common problem but my logs vary a bit

    sudo lsof | grep nsurlsessiond UserEvent 128        root txt    REG        1,4   30016 1152921500313133033 /System/Library/UserEventPlugins/com.apple.nsurlsessiond.plugin/Contents/MacOS/com.apple.nsurlsessiond nsurlsess 309   _nsurlsessiond cwd    DIR        1,4    704          2 / nsurlsess 309   _nsurlsessiond txt    REG        1,4   623456 1152921500313132063 /usr/libexec/nsurlsessiond nsurlsess 309   _nsurlsessiond txt    REG        1,4   28820     12975184868 /Library/Preferences/Logging/.plist-cache.xDxd2OnD nsurlsess 309   _nsurlsessiond txt    REG        1,4  28620288 1152921500312952448 /usr/share/icu/icudt64l.dat nsurlsess 309   _nsurlsessiond txt    REG        1,4  10055680     12975165425 /private/var/folders/zz/zyxvpxvq6csfxvn_n0000000000000/0/com.apple.LaunchServices.dv/com.apple.LaunchServices-1082-v2.csstore nsurlsess 309   _nsurlsessiond txt    REG        1,4   242128     12968148574 /private/var/db/timezone/tz/2021a.3.0/icutz/icutz44l.dat nsurlsess 309   _nsurlsessiond txt    REG        1,4  1572480 1152921500313132594 /usr/lib/dyld nsurlsess 309   _nsurlsessiond  0r   CHR        3,2    0t0         313 /dev/null nsurlsess 309   _nsurlsessiond  1u   CHR        3,2    0t0         313 /dev/null nsurlsess 309   _nsurlsessiond  2u   CHR        3,2    0t0         313 /dev/null nsurlsess 309   _nsurlsessiond  4  NPOLICY                           UserEvent 538       MacVic txt    REG        1,4   30016 1152921500313133033 /System/Library/UserEventPlugins/com.apple.nsurlsessiond.plugin/Contents/MacOS/com.apple.nsurlsessiond nsurlsess 564       MacVic txt    REG        1,4   623456 1152921500313132063 /usr/libexec/nsurlsessiond

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    vicfrostgreen
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While it doesn't look like there will be a general fix that works for everyone from Apple soon, you might be able to solve this by applying a different approach using the System Firewall settings or an external tool that provides similar feature like Lulu. For example running the code to unload the daemon process might lead you to another rabbit hole of Operation not permitted,etc. One approach that solved this for me after sacrificing so much data was to turn on Firewall which is turned off by default and allowing only specific applications to access the internet. Also downloaded the Lulu app and blocked access for the nsurlsessionid daemon from accessing the internet . With this, you can begin to select the applications that get access to your data bandwidth .

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Maverikc
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