Slow download speed uisng SoftEther Server

[matalqah]

Hi ,

I've installed SoftEther server on a windows cloud server with Uplink of 1Gbps , and also configured the windows vpn server on the same server .
when connecting my laptop to the windows VPN server . i got around 8 mbps download speed , but when connecting to SoftEther , i'm not getting more than 1mbps ( downloading the same file from the same location ) .
I'm using SecureNAT in the softether configuration .

Q. Is there any configuration that causes softether slowness ???

Thanks

[sparkwan]

If everything is same, it looks that windows VPN server used data compression, but softether client doesn't.
Try to enable the [Use Data Compression] option on the [Advanced Settings] window.
http://www.softether.org/4-docs/1-manua ... VPN_Server

[matalqah]

Thanks sparkwan for your reply ,

But i couldn't find this option in the SoftEther server console , can you trll me where ?

Thanks

[sparkwan]

This option is a client side option instead of server option,
you can check your windows VPN client settings
and the softether client settings.

[thisjun]

CIFS (SMB) is slow in high latency environment like WAN.
How to download the file? Did you use same method between with VPN and without VPN?
SecureNAT can be bottleneck.