Arch Linux

OmarMusayev

Member

Registered: 2025-05-23

Posts: 2

Arch Linux Live ISO: No IPv4 via DHCP on Ethernet or Wi-Fi

Hardware & Environment:

• PC: ASUS PRIME Z690-P (Intel Ethernet NIC)

• ISO: Arch Linux live (latest x86_64 ISO, booted UEFI)

• Router: TP-Link (stock firmware, DHCP server enabled)

Problem Description 
Booting the Arch live ISO, neither Ethernet nor Wi-Fi obtains an IPv4 address. All links show

UP

and

LOWER_UP

, but:

• dhcpcd -4 <iface>

  always times out after “soliciting a DHCP lease.”

• Static IP test →

  ping 1.1.1.1

  returns “Destination Host Unreachable.”

• Only a link-local IPv6 address appears (fe80::…) on either interface.

What I’ve Tried

• 1. Interface up & link 

  $ ip link show enp6s0
  2: enp6s0: <BROADCAST,MULTICAST,UP,LOWER_UP> …

• 2. No IPv4 lease via DHCP 

  $ sudo dhcpcd -4 enp6s0
  enp6s0: connected to Access Point: <SSID>
  enp6s0: soliciting a DHCP lease…
  timed out
  dhcpcd exited

• 3. Static IP assignment 

  $ sudo ip addr add 192.168.1.50/24 dev enp6s0
  $ sudo ip route add default via 192.168.1.1
  $ echo nameserver 1.1.1.1 | sudo tee /etc/resolv.conf
  $ ping -c3 1.1.1.1
  # → Destination Host Unreachable

• 4. ARP table shows incomplete 

  $ ip neigh show dev enp6s0
  192.168.1.1 <incomplete>

• Wi-Fi behaves identically on

  wlan0

  (state UP/LOWER_UP, DHCP solicits and times out).

Why does my live ISO (on both Ethernet and Wi-Fi) fail to ARP for 192.168.1.1?

Could there be a VLAN/port-isolation hidden in the TP-Link firmware?

Any suggestions for firmware quirks, driver module options, or DHCP-client flags that might help dhcpcd or a fallback client?

gromit

Administrator

From: Germany

Registered: 2024-02-10

Posts: 1,525

Website

Re: Arch Linux Live ISO: No IPv4 via DHCP on Ethernet or Wi-Fi

Is this the case for older ISOs aswell?

OmarMusayev

Member

Registered: 2025-05-23

Posts: 2

Re: Arch Linux Live ISO: No IPv4 via DHCP on Ethernet or Wi-Fi

Hi,

This was my first time booting Arch, so I haven't tried the other ISOs, but I will and will get back to you. Which version would you recommend testing this out on?

gromit

Administrator

From: Germany

Registered: 2024-02-10

Posts: 1,525

Website

Re: Arch Linux Live ISO: No IPv4 via DHCP on Ethernet or Wi-Fi

Also I think the ISO has a systemd-networkd running automatically, as I never had to do something manually for a wired connection to get it up. See https://wiki.archlinux.org/title/Instal … e_internet for more information on this.

I don't know, you could try some image i.e. from 12/24: https://archive.archlinux.org/iso/2024.12.01/