Arch Linux

yabk

Member

Registered: 2018-08-01

Posts: 13

[SOLVED] ethernet dhcp problem - fresh install

Hi, new arch user here.
Yesterday I installed arch and during the installation the internet worked out of the box.
However once I finished the installation and rebooted I couldn't connect via eth port anymore (wireless works OK).
I tried connecting using both dhcpcd and NetworkManger, and neither seem to work.

Here is the output of ifconfig:

enp4s0f1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet6 fe80::9a1e:9d9f:8a78:813f  prefixlen 64  scopeid 0x20<link>
        ether 9c:5c:8e:1a:fd:ba  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 724  bytes 86068 (84.0 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 394855  bytes 31433506 (29.9 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 394855  bytes 31433506 (29.9 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

wlp3s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.5.48  netmask 255.255.255.0  broadcast 192.168.5.255
        inet6 fe80::22:afdb:290b:74c0  prefixlen 64  scopeid 0x20<link>
        ether c0:d9:62:c7:61:bc  txqueuelen 1000  (Ethernet)
        RX packets 509882  bytes 640195915 (610.5 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 313992  bytes 39407018 (37.5 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

Here is the output of dhcpcd -d enp4s0f1:

dhcpcd-7.0.5 starting
enp4s0f1: executing `/usr/lib/dhcpcd/dhcpcd-run-hooks' PREINIT
enp4s0f1: executing `/usr/lib/dhcpcd/dhcpcd-run-hooks' NOCARRIER
enp4s0f1: waiting for carrier
enp4s0f1: carrier acquired
enp4s0f1: executing `/usr/lib/dhcpcd/dhcpcd-run-hooks' CARRIER
DUID 00:01:00:01:22:f3:33:cc:9c:5c:8e:1a:fd:ba
enp4s0f1: IAID 8e:1a:fd:ba
enp4s0f1: delaying IPv6 router solicitation for 0.5 seconds
enp4s0f1: delaying IPv4 for 0.8 seconds
enp4s0f1: soliciting an IPv6 router
enp4s0f1: sending Router Solicitation
enp4s0f1: soliciting a DHCP lease
enp4s0f1: sending DISCOVER (xid 0x8bba967f), next in 4.9 seconds
enp4s0f1: sending Router Solicitation
enp4s0f1: sending DISCOVER (xid 0x8bba967f), next in 8.9 seconds
enp4s0f1: sending Router Solicitation
enp4s0f1: sending Router Solicitation
enp4s0f1: no IPv6 Routers available
enp4s0f1: sending DISCOVER (xid 0x8bba967f), next in 15.8 seconds
timed out
dhcpcd exited

Here are some logs from NetworkManager when trying to connect:

Aug 01 11:07:02 asus-k550j NetworkManager[29860]: <info>  [1533114422.2712] device (enp4s0f1): state change: ip-config -> deactivating (reason 'new-activation', sys-iface-state: 'managed')
Aug 01 11:07:02 asus-k550j NetworkManager[29860]: <info>  [1533114422.2718] device (enp4s0f1): disconnecting for new activation request.
Aug 01 11:07:02 asus-k550j NetworkManager[29860]: <info>  [1533114422.2719] device (enp4s0f1): state change: deactivating -> disconnected (reason 'new-activation', sys-iface-state: 'managed')
Aug 01 11:07:02 asus-k550j NetworkManager[29860]: <info>  [1533114422.2922] dhcp4 (enp4s0f1): canceled DHCP transaction
Aug 01 11:07:02 asus-k550j NetworkManager[29860]: <info>  [1533114422.2923] dhcp4 (enp4s0f1): state changed timeout -> done
Aug 01 11:07:02 asus-k550j NetworkManager[29860]: <info>  [1533114422.2937] device (enp4s0f1): Activation: starting connection 'Wired connection 1' (68746543-5121-3544-9e98-98618197e21e)
Aug 01 11:07:02 asus-k550j NetworkManager[29860]: <info>  [1533114422.2950] device (enp4s0f1): state change: disconnected -> prepare (reason 'none', sys-iface-state: 'managed')
Aug 01 11:07:02 asus-k550j NetworkManager[29860]: <info>  [1533114422.2955] device (enp4s0f1): state change: prepare -> config (reason 'none', sys-iface-state: 'managed')
Aug 01 11:07:02 asus-k550j NetworkManager[29860]: <info>  [1533114422.2961] device (enp4s0f1): state change: config -> ip-config (reason 'none', sys-iface-state: 'managed')
Aug 01 11:07:02 asus-k550j NetworkManager[29860]: <info>  [1533114422.2963] dhcp4 (enp4s0f1): activation: beginning transaction (timeout in 45 seconds)
Aug 01 11:07:48 asus-k550j NetworkManager[29860]: <warn>  [1533114468.0058] dhcp4 (enp4s0f1): request timed out
Aug 01 11:07:48 asus-k550j NetworkManager[29860]: <info>  [1533114468.0058] dhcp4 (enp4s0f1): state changed unknown -> timeout
Aug 01 11:07:48 asus-k550j NetworkManager[29860]: <info>  [1533114468.0059] device (enp4s0f1): DHCPv4: 480 seconds grace period started

I tried changing the ports on router and it's still the same. Other computers work fine on the same network.
Please tell me if I can provide you with some other logs or important information that I missed out.

Last edited by yabk (2018-08-02 10:22:29)

Lone_Wolf

Administrator

From: Netherlands, Europe

Registered: 2005-10-04

Posts: 15,556

Re: [SOLVED] ethernet dhcp problem - fresh install

The ethernet card is sending some bytes but hasn't received any, that suggests the problem is on a lower level.
Have you tried with  a different cable ?

please post lspci -k and the output of ethtool enp4s0f1
(you may have to install ethtool)

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yabk

Member

Registered: 2018-08-01

Posts: 13

Re: [SOLVED] ethernet dhcp problem - fresh install

I tried with different cable, still the same. Also I can still boot into installation stick and connect with dhcpcd no problem.

lspci -k:

00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor DRAM Controller (rev 06)
	Subsystem: ASUSTeK Computer Inc. Xeon E3-1200 v3/4th Gen Core Processor DRAM Controller
	Kernel modules: ie31200_edac
00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor PCI Express x16 Controller (rev 06)
	Kernel driver in use: pcieport
	Kernel modules: shpchp
00:02.0 VGA compatible controller: Intel Corporation 4th Gen Core Processor Integrated Graphics Controller (rev 06)
	Subsystem: ASUSTeK Computer Inc. 4th Gen Core Processor Integrated Graphics Controller
	Kernel driver in use: i915
	Kernel modules: i915
00:03.0 Audio device: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor HD Audio Controller (rev 06)
	Subsystem: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor HD Audio Controller
	Kernel driver in use: snd_hda_intel
	Kernel modules: snd_hda_intel
00:14.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB xHCI (rev 05)
	Subsystem: ASUSTeK Computer Inc. 8 Series/C220 Series Chipset Family USB xHCI
	Kernel driver in use: xhci_hcd
	Kernel modules: xhci_pci
00:16.0 Communication controller: Intel Corporation 8 Series/C220 Series Chipset Family MEI Controller #1 (rev 04)
	Subsystem: ASUSTeK Computer Inc. 8 Series/C220 Series Chipset Family MEI Controller
	Kernel driver in use: mei_me
	Kernel modules: mei_me
00:1b.0 Audio device: Intel Corporation 8 Series/C220 Series Chipset High Definition Audio Controller (rev 05)
	Subsystem: ASUSTeK Computer Inc. 8 Series/C220 Series Chipset High Definition Audio Controller
	Kernel driver in use: snd_hda_intel
	Kernel modules: snd_hda_intel
00:1c.0 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #1 (rev d5)
	Kernel driver in use: pcieport
	Kernel modules: shpchp
00:1c.2 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #3 (rev d5)
	Kernel driver in use: pcieport
	Kernel modules: shpchp
00:1c.3 PCI bridge: Intel Corporation 8 Series/C220 Series Chipset Family PCI Express Root Port #4 (rev d5)
	Kernel driver in use: pcieport
	Kernel modules: shpchp
00:1f.0 ISA bridge: Intel Corporation HM86 Express LPC Controller (rev 05)
	Subsystem: ASUSTeK Computer Inc. HM86 Express LPC Controller
	Kernel driver in use: lpc_ich
	Kernel modules: lpc_ich
00:1f.2 SATA controller: Intel Corporation 8 Series/C220 Series Chipset Family 6-port SATA Controller 1 [AHCI mode] (rev 05)
	Subsystem: ASUSTeK Computer Inc. 8 Series/C220 Series Chipset Family 6-port SATA Controller 1 [AHCI mode]
	Kernel driver in use: ahci
	Kernel modules: ahci
00:1f.3 SMBus: Intel Corporation 8 Series/C220 Series Chipset Family SMBus Controller (rev 05)
	Subsystem: ASUSTeK Computer Inc. 8 Series/C220 Series Chipset Family SMBus Controller
	Kernel driver in use: i801_smbus
	Kernel modules: i2c_i801
01:00.0 3D controller: NVIDIA Corporation GM107M [GeForce GTX 950M] (rev a2)
	Subsystem: ASUSTeK Computer Inc. GM107M [GeForce GTX 950M]
	Kernel driver in use: nouveau
	Kernel modules: nouveau
03:00.0 Network controller: Qualcomm Atheros AR9462 Wireless Network Adapter (rev 01)
	Subsystem: Fujitsu Limited. AR9462 Wireless Network Adapter
	Kernel driver in use: ath9k
	Kernel modules: ath9k
04:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTL8411B PCI Express Card Reader (rev 01)
	Subsystem: ASUSTeK Computer Inc. RTL8411B PCI Express Card Reader
	Kernel driver in use: rtsx_pci
	Kernel modules: rtsx_pci
04:00.1 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 12)
	Subsystem: ASUSTeK Computer Inc. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
	Kernel driver in use: r8169
	Kernel modules: r8169

ethtool enp4s0f1:

Settings for enp4s0f1:
	Supported ports: [ TP MII ]
	Supported link modes:   10baseT/Half 10baseT/Full 
	                        100baseT/Half 100baseT/Full 
	                        1000baseT/Half 1000baseT/Full 
	Supported pause frame use: No
	Supports auto-negotiation: Yes
	Supported FEC modes: Not reported
	Advertised link modes:  10baseT/Half 10baseT/Full 
	                        100baseT/Half 100baseT/Full 
	                        1000baseT/Full 
	Advertised pause frame use: Symmetric Receive-only
	Advertised auto-negotiation: Yes
	Advertised FEC modes: Not reported
	Link partner advertised link modes:  10baseT/Half 10baseT/Full 
	                                     100baseT/Half 100baseT/Full 
	Link partner advertised pause frame use: No
	Link partner advertised auto-negotiation: Yes
	Link partner advertised FEC modes: Not reported
	Speed: 100Mb/s
	Duplex: Full
	Port: MII
	PHYAD: 0
	Transceiver: internal
	Auto-negotiation: on
	Supports Wake-on: pumbg
	Wake-on: d
	Current message level: 0x00000033 (51)
			       drv probe ifdown ifup
	Link detected: yes

yabk

Member

Registered: 2018-08-01

Posts: 13

Re: [SOLVED] ethernet dhcp problem - fresh install

I did some additional testing.

I set static ip address via NetworkManager and still nothing.
Pinging anything, even the network gateway, would result in "Destination Host Unreachable".

I then connected it to another, mikrotik, router and tried to connect with both dhcpcd and NetworkManager.
On the router logs I saw that it isn't receiving any requests from my laptop.
Logs from both dhcpcd and NetworkManager were same as the ones I posted above.

yabk

Member

Registered: 2018-08-01

Posts: 13

Re: [SOLVED] ethernet dhcp problem - fresh install

Once again I tried booting into arch installation usb and this time it didn't work there either. (I'm pretty sure it worked the first time I tried after installation)

After that, I found that the problem persisted on debian live image as well.

Upon further investigation I noticed that one of the pins on my ethernet port is slightly bent inwards.
I think that that explains everything.

I will be closing this topic now, sorry for confusion.

seth

Member

From: Won't reply 2 private help req

Registered: 2012-09-03

Posts: 78,843

Re: [SOLVED] ethernet dhcp problem - fresh install

Do you have a parallel windows installation?
https://wiki.archlinux.org/index.php/Du … t_Start-Up

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yabk

Member

Registered: 2018-08-01

Posts: 13

Re: [SOLVED] ethernet dhcp problem - fresh install

I do have windows installed as well.

seth

Member

From: Won't reply 2 private help req

Registered: 2012-09-03

Posts: 78,843

Re: [SOLVED] ethernet dhcp problem - fresh install

Follow the link, disable fastboot.

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yabk

Member

Registered: 2018-08-01

Posts: 13

Re: [SOLVED] ethernet dhcp problem - fresh install

It is disabled.

I'm sorry but I don't see how that could cause these problems with ethernet interface.
Could you mind explaining please.

seth

Member

From: Won't reply 2 private help req

Registered: 2012-09-03

Posts: 78,843

Re: [SOLVED] ethernet dhcp problem - fresh install

Fastboot is a cheat.
The system isn't shut down but hibernated and the HW is left in an undefined state. This causes all sorts of problems, from random functionality to data loss. (This is a general poblem w/ running one system while another one is in hibernation )

However I only read up to "non-deterministic" and missed the "bent pin" part (bad habit of mine) - that's of course a good explanation for weird behavior (though i've never seen a bent rj45 pin - what happens is that the outer pins break if you force a phone jack into it)

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yabk

Member

Registered: 2018-08-01

Posts: 13

Re: [SOLVED] ethernet dhcp problem - fresh install

I have a dualboot Windows but I haven't used it for a few weeks now.

However I only read up to "non-deterministic" and missed the "bent pin" part

No problem man. I knew fastboot could be pain in the ass but didn't know it could cause HW issues so I learned something new now, thanks for that!

Last edited by yabk (2018-08-02 12:11:39)