[Solved] SoftEther speed is too slow

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juny1209
Posts: 5
Joined: Fri Sep 11, 2020 6:04 am

[Solved] SoftEther speed is too slow

Post by juny1209 » Wed Aug 04, 2021 4:41 pm

Hello. I'm using Vultr VPS. I installed CentOS 7 and SoftEther, and I enabled SecureNAT.
But.. the speed of SoftEther is too slow. I tried SoftEther Client and SoftEther bridge.

But, other VPN program speed is very fast although OpenVPN of SoftEther.

In case, My home network maximum bandwidth is 500Mbps and tested by famous network benchmark service in this region.

Normal(Not connecting VPN)
-> Down 500Mbps / Up 495Mbps

Using SoftEther Client with SecureNAT
-> Down 0.5Mbps / Up 180Mbps

Using Outline VPN
-> Down 480Mbps / Up 450Mbps

Using OpenVPN included in SoftEther with SecureNAT
-> Down 480Mbps / Up 480Mbps

Almost of VPN are very fast but only SoftEther is very slow.

Because the speed of OpenVPN included in SoftEther is very fast, I think SecureNAT is not reason of this problem.

I tried "No Encryption", TCP connection to 32 and cascade with my home server, but no effect existed.

Could someone give me some feedback or hint? I should use SoftEther for some reasons. Thanks!
Last edited by juny1209 on Sat Aug 07, 2021 5:21 pm, edited 1 time in total.

juny1209
Posts: 5
Joined: Fri Sep 11, 2020 6:04 am

Re: SoftEther speed is too slow

Post by juny1209 » Sat Aug 07, 2021 5:20 pm

It was SecureNAT problem. I try OpenVPN today, It slow too. solved

guestofhonor
Posts: 1
Joined: Tue Aug 10, 2021 2:36 am

Re: [Solved] SoftEther speed is too slow

Post by guestofhonor » Tue Aug 10, 2021 2:40 am

Hello juny1209,

Could you please explain how you were able to fix the issue since i'm facing the exact same issue.

Thanks in advance

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