USG Flex 500H OpenVPN very slow

JJ9231

Installed USG Flex 500H quite standard with SSL VPN and using OpenVPN: Upload large file from device to server - about 0.5 - 1 Mb/Sec. Download about 3 - 4 Mb/Sec.

Are there any special settings to achieve available bandwidth?

Zyxel_Emily

Hi @JJ9231,

Here is the official test report for your reference. You can disable security policy and all security services to check the throughput again.

Using HTTP protocol to get 700M ZIP file from a server.
SSL VPN (AES) throughput on USG FLEX 500H with firmware 1.20 is around 239.5 Mbps.
(Security policy, Security services, BWM, DOS, Session control are disabled.)

Zyxel_Emily

Hi @JJ9231,

Here is the official test report for your reference. You can disable security policy and all security services to check the throughput again.

Using HTTP protocol to get 700M ZIP file from a server.
SSL VPN (AES) throughput on USG FLEX 500H with firmware 1.20 is around 239.5 Mbps.
(Security policy, Security services, BWM, DOS, Session control are disabled.)

JJ9231

Hi Zyxel_Emily, thank you.

PeterUK

my Flex 200H OpenVPN is also slow can't hit past even 30Mb on a LAN test

disable policy control goes upto 70Mb