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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 ...
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.
I just did a test on a Windows 10 VM and when I installed Hamachi the VM went from 200Mb/s to 60Mb/s could this be a setting somewhere or a bug?
got the same problem here ... after installingy hamachi i`ve got slow downloads on HTTP and on steam, origin and so on ... uninstalling hamachi doesn`t fix it ... need some help
i`ve testet jdownloader and if i download something 10 files with 20 downloads chucks at the same time i got mei 1 gigabit speed ... but this is the only way
- I found a way to keep Hamachi and maintain your internet speed while you are not using it.
Go to Services (Windows Search Bar: services.msc) and look up for LogMeIn Hamachi Tunneling Engine, disable it and restart the computer. It worked for me, if I need to use Hamachi again I'll enable it just for the time being. This way at least you won't have to format the OS.
Hope it helps! Is not the ultimate solution but it works.That workaround did not work for me.
My cousing had been troubleshooting this for a few days and after starting to get involved in the troubleshooting the same problem occured on my main computer as well. There was no chance to increase the download above 1.3MBs (got 200/200 connection), unless downloading from a service that uses swarm tech (i.e Steam, Origin etc).
After backtracking we came back to Hamachi and this thread. We finally found the solution that worked for us. It seems installing Hamachin changes the TCP Global Parameters. To check/fix this, do the following:
SOLUTION:
Start -> Run -> CMD (as administrator to buypass the UAC)
then type the following command to show what parameters your current TCP has:
netsh interface tcp show global
This should give you a list over the TCP parameters, the ones Hamachi seems to change are these two:
Receive-Side Scaling State & Receive Window Auto-Tuning Level. Recieve-Side Scaling State was set to 'disabled' and Recieve Window Auto-Tuning Level was set to 'disabled'
Type the following commands in the CMD to change this:
netsh int tcp set global autotuninglevel=normal (Response should be OK.)
netsh int tcp set global rss=enabled (Response should be OK.)
Reboot shouldn't be needed after, but if you encounter problems do it. We didn't test Hamachi after this because we uninstalled it so I don't know how it works after this change.
I have no idea why Hamachi changes these parameters on some/all computers? When we checked other hosts in our network running the same OS without hamachi these parameters where unchanged and download speed OK.
That's weird. In my case, the steam origin had a normal down speed.
I've only experienced a slowdown in megacloud.
At this time, the only way to fix it is to restore the OS on Windows 10 itself. Sad news
If you only need to delete games and settings apps Try using a recovery method that only reinstalls os
It will not delete video files and portable file And it will tell you which apps you kindly deleted on your create htlml remove app desktop So just watch and reinstall the apps you deleted I think this is the only way I can tell you.Co-worker and I have the exact same story. Installing Hamachi caps our speed at about 100mpbs. Uninstalling it does not fix anything. If we do a complete OS reset, it goes back to normal. Install Hamachi again and it gets capped.
LogMeIn support provided no assistance and said it wasn't their software when clearly it is.
I had to do a system reset. Once I did that I updated everything and made a restore point before installing Hamachi. I then installed and it did it again, slowed my bandwidth down. I then restored back to before the installation and everything was back to normal. Since I have to use hamachi for work I have it running through a VM and just do all work related stuff through the VM. This is sad that no one from Logmein has responded to this...
