USG 110 kernel UDP_CONNECTION_ERROR_UNKNOWN

prif
prif Posts: 4  Freshman Member
First Comment
edited April 2021 in Security
Hello.
Sometimes my usg 110 unreachable.
I can not ping it and web interface is not working. 
It`s longs from 15 second to some minutes.
Today I saw this error in debug log in time when USG was stuck.
kernel: <0>[ConnTrack_UDP(2301)]: UDP_CONNECTION_ERROR_UNKNOWN
What this error means?

PS I have the latest firmware installed.

All Replies

  • Zyxel_Stanley
    Zyxel_Stanley Posts: 1,377  Zyxel Employee
    100 Answers 1000 Comments Friend Collector Seventh Anniversary

    Hi @prif  

    What firmware version is working on your USG110?

    Does your PC behind USG when you testing ICMP and WebGUI? When issue occurring, can PC access to internet?

    Can you connect console cable between PC and USG110 to collect level8 logs by terminal tool until the symptom happen again?

    Change console log level:  Router> debug kernel console-level 8  (default is 1)


  • prif
    prif Posts: 4  Freshman Member
    First Comment
    Firmware version is 4.33(AAAA.0)
    Yes, my PC is behind USG. There is no internet access.

    I will try with console cable.
  • prif
    prif Posts: 4  Freshman Member
    First Comment
    Yesterday my USG was self-rebooted.
    Console log before reboot is in attachment.
    And in debug log there is error while booting about conntrack:
    kernel: nf_conntrack: automatic helper assignment is deprecated and it will be removed soon. Use the iptables CT target to attach helpers instead.
    log.txt 84.4K
  • Zyxel_Stanley
    Zyxel_Stanley Posts: 1,377  Zyxel Employee
    100 Answers 1000 Comments Friend Collector Seventh Anniversary
    Hi @prif
    Can you send your configuration by private message for further check?

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