DHCP problems with latest rc on tp link archer c7 v5

[lucki1000]

Hi guys,

does anyone also face a dhcp v4 issue in 25.12.0-rc2?

i just updated from 25.12.0-rc1 to 25.12.0-rc2 via the builtin sysupgrade over luci, so now I don’t get any IPv4 over dhcp in my lan or wlan, so why do I know it has to be the dhcp, because I assign my laptop a static wlan ip, and anything works fine like before the update.

So then i looked into the udhcpd service and there I see the following:

root@OpenWrt:~# odhcpd -h
== odhcpd Usage ==
Features: ra ndp dhcpv6 no-dhcpv4 ubus

-c <dir> Read UCI configuration files from <dir>
-l <int> Specify log level 0..7 (default 4)
-f Log to stderr instead of syslog
-u Disable ubus support
-h Print this help text and exit
root@OpenWrt:~#

Does this feature “no-dhcpv4" mean that dhcpv4 is completely disabled, or is there another daemon I miss to check out?

My device is:

TP-Link Archer C7 v5

OPENWRT_RELEASE="OpenWrt 25.12.0-rc2 r32429-d76c64ad00"
OPENWRT_BUILD_DATE="1767653330"

Regards

Lucki1000

[psherman]

let's review your config to make sure that there aren't any issues in those files:

Please connect to your OpenWrt device using ssh and copy the output of the following commands and post it here using the "Preformatted text </> " button (red circle; this works best in the 'Markdown' composer view in the blue oval):

Remember to redact passwords, VPN keys, MAC addresses and any public IP addresses you may have:

ubus call system board
cat /etc/config/network
cat /etc/config/wireless
cat /etc/config/dhcp
cat /etc/config/firewall

[dave14305]

Make sure dnsmasq is still installed after the sysupgrade.

[lleachii]

@lucki1000

Does this feature “no-dhcpv4" mean that dhcpv4 is completely disabled, or is there another daemon I miss to check out?

Yes. DHCPv4 in OpenWrt is handled by dnsmasq by default, not odhcpd .

[lucki1000]

Hi @lleachii @dave14305 ,

thanks, dnsmasq was missing , that fixed it for me