VPN SSL - Slow unstable connection

rchmielarski

Hello all,

I have problem with USG 1100 and VPN SSL.

We are allow for RDP for users via VPN SSL. But it's slow and unstable. 

We didn't registered high usage of CPU/RAM etc. all is in normal usage.

Do you know what could be wrong?

We have up to date firmware on Zyxel and Secuextender.

Regards,
Rafał

Przemek

Same here.

My internal network dissapearing from SSL VPN and only UTM reboot helps.

Zyxel_Charlie

@rchmielarski & @Przemek
Can you share more information about SSL VPN session unstable?
What is your firmware version?
Charlie

Przemek

USG 310

Firmware version: V4.33(AAPJ.0) / 2019-01-09 09:39:20

After connection made with secuextender can't ping connected network servers and workstations.

Remote workers complain on slow connection often. Its good for remote putty console with server but not for working with file transfer or remote desktop on 150/150 stable fiber connection.

When reboot my device everything starting to work. It happens after few weeks without USG reboot.

Can't make VPN working without reboot disconnecting all users.

rchmielarski

@Zyxel_Charlie

V4.33(AAPK.0) / 2019-01-09 09:38:56

Situation the same like Przemek.

Zyxel_Charlie

@Przemek @rchmielarski
Regarding to this case,
I’d like to send you the private message to understand more in details.
Charlie

JiangNanGenius

@Zyxel_Charlie
I have the same problem with them I'm using a ZYWALL 110 with V4.33(AAAA.0) Firmware.
Speed is slower than 200kb/s most of the time. 

Zyxel_Vic

Hi @JiangNanGenius
The current patch should had fixed this, I'll send you this patch by using private message.

mrwee

I am on the same firmware version on a USG 110, and also experience slow VPN throughput. Is there a patch available? Checking for an update under Firmware Manager, shows no updates available.

Zyxel_Stanley

Hi @mrwee
I will send you patch firmware by private message.

mrwee

@Zyxel_Charlie Thanks for your prompt reply. Will test it out asap.