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H4X0R46's avatar
H4X0R46
New Contributor
7 years ago
Solved

Slow internet speeds after installing Hamachi

I've been having this issue for so long now! For some reason, my internet is blazing fast until I install Hamachi. Certain website downloads are affected but others aren't. for instance, downloading ...
  • oyvindhauge's avatar
    oyvindhauge
    6 years ago

    Try this to check the status of Receive Window Auto-Tuning Level

    netsh interface tcp show global

    and if it is disabled, turn it on with

    netsh interface tcp set global autotuninglevel=normal

    This helped me and two mates. The settings need to be run with admin rights cmd  (and shift+ctrl when you run it).

    As far as we understand it you would most likely want Receive-Side Scaling State enabled as well.

    netsh interface tcp set global rss=enabled

    We have not tested Hamachi after changing these settings. Nevertheless, just wanted to share because this problem was making us crazy.

GazCBG's avatar
GazCBG
New Member
5 years ago

Hi,

 

I tried out Hamachi and noticed it slows down my internet, even when not connected.

I found the fix, for this which sorted out my download speeds, but would like to know:

 

Is it a 1 time fix or do I need to keep doing it?

 

Thanks