VPN SSL - Slow unstable connection

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rchmielarski
rchmielarski Posts: 2
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edited April 2021 in Security
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
«13

All Replies

  • Przemek
    Przemek Posts: 28  Freshman Member
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    Same here.
    My internal network dissapearing from SSL VPN and only UTM reboot helps.
  • Zyxel_Charlie
    Zyxel_Charlie Posts: 1,034  Zyxel Employee
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    @rchmielarski & @Przemek
    Can you share more information about SSL VPN session unstable?
    What is your firmware version?
    Charlie

  • Przemek
    Przemek Posts: 28  Freshman Member
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    edited April 2019
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    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
    rchmielarski Posts: 2
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    edited April 2019
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    V4.33(AAPK.0) / 2019-01-09 09:38:56

    Situation the same like Przemek.
  • Zyxel_Charlie
    Zyxel_Charlie Posts: 1,034  Zyxel Employee
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    edited April 2019
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    @Przemek @rchmielarski
    Regarding to this case,
    I’d like to send you the private message to understand more in details.
    Charlie
  • JiangNanGenius
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    @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
    Zyxel_Vic Posts: 281  Zyxel Employee
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    Hi @JiangNanGenius
    The current patch should had fixed this, I'll send you this patch by using private message.
  • mrwee
    mrwee Posts: 40  Freshman Member
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    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
    Zyxel_Stanley Posts: 1,374  Zyxel Employee
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    Hi @mrwee
    I will send you patch firmware by private message.
  • mrwee
    mrwee Posts: 40  Freshman Member
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    @Zyxel_Charlie Thanks for your prompt reply. Will test it out asap.

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