L2TP VPN not working after upgrade to firmware v5.00

Options
As in subject, after manual upgrade of some USG Flex 100 and 200 the previous working L2TP VPN isn't working, forcing me to downgrade to firmware v4.62.
Any helps appreciated.
Thanks in advance.

All Replies

  • Zyxel_Can
    Zyxel_Can Posts: 342  Zyxel Employee
    Friend Collector First Answer First Comment
    Options

    Hi @Marco_Betto,

     

    I created L2TP VPN for USG FLEX and it works normal.



    Can you share some information with us;

     

    1- Did you try to connect L2TP VPN to USG FLEX with a smartphone?

    2- When connecting to L2TP VPN if it fails, can you check IKE and L2TP logs under Monitor > Log menu and share with me by private message?

    3- Can you send me your device's startup-config.conf file both for v5.00 and v4.62 firmware versions by private message?
  • mMontana
    mMontana Posts: 1,347  Guru Member
    Community MVP First Anniversary 10 Comments Friend Collector
    Options
    the previous working L2TP VPN isn't working
    On which OS were these connections configured?

  • CarlosM
    CarlosM Posts: 1
    Options
    Hi

    I have version V5.00(ABUI.2) / 2021-05-07 23:04:49 and I can't get the L2TP/IPSEC VPN to work. The logs do not show IKE and L2TP logs.

    I need to connect by VPN windows, ios and android.

    I appreciate if someone could help me.
  • Zyxel_Can
    Zyxel_Can Posts: 342  Zyxel Employee
    Friend Collector First Answer First Comment
    Options
    Hi @CarlosM,

    Can you share some information with us;


    1- Was it working with previous firmware version?
    If so, what was your USG FLEX 200's previous version?

    2- Is your USG FLEX 200 behind NAT?

    4- Please provide me temporarily remote limited-admin access to your USG FLEX 200 by private message.

    5- For Android the settings are as in the following image:
    (Settings > Network & internet > VPN > + Button)


    Server Address = WAN IP of your USG FLEX 200
    IPSec pre-shared key = Configuration > VPN > IPSec VPN > Authentication > Pre-Shared Key

    Please provide the information above also please test with Android settings.

Security Highlight