Firmware V5.36(ABWD.0) issues

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  • Sistemi
    Sistemi Posts: 1
    First Comment

    Hi, same issue here, ATP500 with v5.36.
    @Zyxel_Cooldia is it possible to have a test firmware to resolve this issue?
    Or do we have to downgrade to a CVE affected version (like 5.32 / 5.35)?

    Since the upgrade, I need to reboot the firewall every 4 hours.

    Thanks

  • USG_User
    USG_User Posts: 374  Master Member
    5 Answers First Comment Friend Collector Sixth Anniversary

    Has already been turned out which special configuration is responsible for the issue? Our USG Flex 700, configured with 15 SSL VPN Users, is still running fine without problems or permanent reboots, but we are concerned nevertheless.

  • Agor76
    Agor76 Posts: 42  Freshman Member
    First Comment Friend Collector Sixth Anniversary
    https://community.zyxel.com/en/discussion/comment/51775#Comment_51775

    Hi USG_User,

    It may mostly depends on how many simultaneous users are connecting to the firewall via SSL VPNs and 2FA usage. I've also have a Flex 700 with 23 ssl vpn users configured and very few of them (no more than 3) connecting simultaneously that works fine with 5.36. The affected Flex 700s are having heavy ssl VPNs usage

    Regards

  • USG_User
    USG_User Posts: 374  Master Member
    5 Answers First Comment Friend Collector Sixth Anniversary

    Thanks a lot Agor. Indeed, normally not more than 3 streetworkers are connecting simultaneously to our Flex700.

  • Agor76
    Agor76 Posts: 42  Freshman Member
    First Comment Friend Collector Sixth Anniversary
    https://community.zyxel.com/en/discussion/comment/51786#Comment_51786

    You're welcome

  • StefanD82
    StefanD82 Posts: 1
    First Comment Friend Collector Third Anniversary

    Hi @Zyxel_Cooldia ,

    I have the same problems with an USGflex 100 (ABUH). The weekle Update vom 2023-04-28 doesn't fix the problem. Where can in I download the version ITS-23WK17-0504-230401495D / 2023-05-04 10:35:09 for USGflex 100?

    Thanks a lot…

  • mitchell75
    mitchell75 Posts: 1
    First Comment

    Hi,

    We've been having the same issue on 2 VPN100 devices since the upgrade. The devices seem to work reasonably well for people on the lan but all of our l2tp vpn connections and p2p connections stop functioning after about 24 hours. Rebooting the devices resolves the issue.

    We're considering downgrading all of our devices today.

    Thank you.

  • Mathias_Götsch
    Mathias_Götsch Posts: 2
    First Comment Friend Collector

    I got the new Firmware from @Zyxel_Cooldia
    Installed it yesterday morning and so far no issues at all.

  • USG_User
    USG_User Posts: 374  Master Member
    5 Answers First Comment Friend Collector Sixth Anniversary

    @Zyxel: Is it planned to release a new official update soon? Or should all affected customers ask for the ITS lab version now?

  • Zyxel_Cooldia
    Zyxel_Cooldia Posts: 1,511  Zyxel Employee
    Zyxel Certified Network Administrator - Security Zyxel Certified Sales Associate 100 Answers 1000 Comments

    The V5.36 patch 1 is going to release, the schedule as below,

    FLEX/ATP series : 05/10 (Nebula)

    USG FLEX series : 05/11 (on premise)

    ATP/VPN series : 05/12 (on premise)

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