USG 1100 - DHCP issue - stops serving IP addresses

2

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  • RobT
    RobT Posts: 8
    First Comment Friend Collector
    @Zyxel_Kevin about 2 days after installing the new firmware, the DHCP server has stopped working again:
    Router> debug system ps | match "dhc"
    24561     1 dhcpcd_request  root     ?         19   0  0.0  0.0 Ss     2028   516   364   507 08:26:26    08:23:02 00:00:26 /usr/local/sbin/dhcpcd_request eth0 0 ZyWALL 110
    24595     1 dhcpcd          root     ?         19   0  0.0  0.0 Ss     1836   492   296   459 08:26:37    08:22:51 00:00:00 /sbin/dhcpcd -R -Y -N -G -L /var/zyxel/zysh/ -i ZyWALL 110 -h EBCzywall110 eth0
    Router>
  • Zyxel_Kevin
    Zyxel_Kevin Posts: 885  Zyxel Employee
    Zyxel Certified Network Administrator - Security Zyxel Certified Sales Associate 100 Answers 500 Comments
    Hi @RobT,
    Thank for your report,I will investigate the issue.
    Kevin
  • Zyxel_Kevin
    Zyxel_Kevin Posts: 885  Zyxel Employee
    Zyxel Certified Network Administrator - Security Zyxel Certified Sales Associate 100 Answers 500 Comments
    Hi @RobT,
    Please kindly find the inbox, I sent you the fix yesterday.
    Plesae feel free to contact us if the issue persist.
    Kevin
  • RobT
    RobT Posts: 8
    First Comment Friend Collector
    @Zyxel_Kevin I upgraded the firmware to 4.72(AAAA.0)C0 and the router started to experience DHCP issues again where it would no longer serve out IP addresses. I reinstalled V4.72(AAAA.0)ITS-22WK20-2022-05-23-220500939 but the DHCP server also stops working after about a day.   
  • mMontana
    mMontana Posts: 1,389  Guru Member
    50 Answers 1000 Comments Friend Collector Fifth Anniversary
    @RobT WK35 has been delivered few years ago. IDK if this could help your problem.
  • RobT
    RobT Posts: 8
    First Comment Friend Collector
    @mMontana Thanks for your quick reply!  @Zyxel_Kevin sent me V4.72(AAAA.0)ITS-22WK20-2022-05-23-220500939 after he remotely logged into the router and found that the App-watch-dog needed a 3 minute interval to check daemons. When I upgraded to V4.72(AAAA.0)ITS-22WK20-2022-05-23-220500939 from V4.71 the DHCP server worked correctly until it was upgraded to V4.72 (AAAA.0) when it started to exhibit the DHCP problem again.
  • Zyxel_Kevin
    Zyxel_Kevin Posts: 885  Zyxel Employee
    Zyxel Certified Network Administrator - Security Zyxel Certified Sales Associate 100 Answers 500 Comments
    Hi @RobT, 
    Please find the latest weekly firmware. It already included the fix . 
    Thank you
    Kevin
  • RobT
    RobT Posts: 8
    First Comment Friend Collector
    @Zyxel_Kevin After upgrading to the latest weekly firmware, I'm still experiencing DHCP issues where it stops serving out IP addresses.
  • PeterUK
    PeterUK Posts: 3,389  Guru Member
    100 Answers 2500 Comments Friend Collector Seventh Anniversary
    Is your subnet bigger then 255.255.255.0 ?
  • mMontana
    mMontana Posts: 1,389  Guru Member
    50 Answers 1000 Comments Friend Collector Fifth Anniversary
    I had issue also with USG40 and a "bigger than /24" subnet mask + lease interval.
    https://community.zyxel.com/en/discussion/comment/9232
    Any updates on this?

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