[FS#4211] DIR-867: udhcpc fails to get a lease on the WAN port

OpenWrt Bugs openwrt-bugs at lists.openwrt.org
Sun Dec 26 23:02:15 PST 2021


A new Flyspray task has been opened.  Details are below. 

User who did this - Darik Horn (dajhorn) 

Attached to Project - OpenWrt/LEDE Project
Summary - DIR-867: udhcpc fails to get a lease on the WAN port
Task Type - Bug Report
Category - Base system
Status - Unconfirmed
Assigned To - 
Operating System - All
Severity - Medium
Priority - Very Low
Reported Version - openwrt-21.02
Due in Version - Undecided
Due Date - Undecided
Details - Device: D-Link DIR-867 HW:A1
Software: openwrt-21.02.1-ramips-mt7621-dlink_dir-867-a1-squashfs-factory.bin


  - Install OpenWRT on the DIR-867.
  - Set the system configuration to defaults.
  - Reboot.
  - Wait for a DHCP lease on the WAN port.

I only ever got this message with a timeout and zero bytes inbound:

  udhcpc: sending discover

I tried these things:

  * Running udhcpc at the console with various options like -T, -C and -B.
  * Doing ifconfig up/down on the WAN interface.
  * Toggling every DHCP option in LuCI.
  * Disabling the firewall.

The ISP is Teksavvy through a Technicolor DOCSIS modem.  Any other DHCP client works as expected when directly connected to the modem.  Reverting to stock D-Link firmware version 1.30 resolves the glitch.

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