Arch Linux

PizzaRollExpert

Member

Registered: 2018-05-20

Posts: 9

Cannot connect to ethernet or wireless

I don't even remember how I managed to do this, I haven't tinkered with my hobby laptop in ~6 months at this point.

Despite previously being able to do so, I can no longer connect to the internet in any way on my arch install.

$ ip addr
1:  lo: <LOOPBACK, UP,LOWER UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
      link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
      inet 127.0.0.1/8 scope host lo
         valid_lft forever preferred_lft forever
      inet6 ::1/128 scope host
         valid_lft forever preferred_Ift forever

ip is clearly missing at least two devices from what I can tell.

I dualboot windows and while in windows mode I can connect to the internet via ethernet but not via wifi ("No wireless device found" or something like that, my windows isn't in english). I tried reinstalling drivers for the network card which did not fix the problem. The drivers wizard is able to detect the network card unlike the wifi configuration menu.

ThinkPad

Member

Registered: 2019-01-29

Posts: 125

Re: Cannot connect to ethernet or wireless

What packages are you using to try to establish connection? What is the type of network you are connecting to?

Try using iwd with dhcpcd enabled. dhcpcd should handle ethernet connection automatically.

PizzaRollExpert

Member

Registered: 2018-05-20

Posts: 9

Re: Cannot connect to ethernet or wireless

I enabled dhcpcd and restarted which did not fix the issue. iwd is not installed and I can't install it (since I don't have any internet).

I'm trying to connect to my router in my room, both via cable and wifi. It works for both my stationary and my phone. Problem is that I can't even find the devices required to connect in the first place.

I've got NetworkManager enabled and I don't think anything else (I've checked for these ones: https://wiki.archlinux.org/index.php/Ne … _managers)

I'm not sure if I answered your questions, let me know if you want to see the output of some command or something

loqs

Member

Registered: 2014-03-06

Posts: 19,101

Re: Cannot connect to ethernet or wireless

What is the module loaded for the wired NIC?  Network_configuration#Device_driver.

PizzaRollExpert

Member

Registered: 2018-05-20

Posts: 9

Re: Cannot connect to ethernet or wireless

$ lspci -v

...
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL810xE PCI Express Fast Ethernet
controller (rev 07)
        Subsystem: ASUSTeK Computer Inc. RTL810xE PCI Express Fast Ethernet controller
        Flags: bus master, fast devsel, latency 0, IRQ 255
        I/O ports at e000 [size=256]
        Memory at 81200000 (64-bit, non-prefetchable) [size=4K)
        Memory at a0000000 (64-bit, prefetchable) [size=16K]
        Capabilities: <access denied>
        Kernel modules: r8169
$ dmesg grep r8169
$

So it looks like no module is loaded. I looked for the 8139too one like the wiki suggested. It exists, but I can't get it to load

$ modinfo 8139too
filename: /lib/modules/5.1.11-arch1-1-ARCH/kernel/drivers/net/ethernet/realtek/8139too.ko.xz
...
$ sudo insmod /lib/modules/5.1.11-arch1-1-ARCH/kernel/drivers/net/ethernet/realtek/8139too.ko.xz

insmod: ERROR: could not insert module /lib/modules/5.1.11-arch1-1-ARCH/kernel/drivers/net/ethernet/realtek/8139too.ko.xz: Unknown symbol in module

loqs

Member

Registered: 2014-03-06

Posts: 19,101

Re: Cannot connect to ethernet or wireless

What is the output of the following

pacman -Q linux
dmesg

Edit:
As the system does not have net access can you copy the output to removable media then upload it to a pastebin?

Last edited by loqs (2019-08-09 19:49:50)

PizzaRollExpert

Member

Registered: 2018-05-20

Posts: 9

Re: Cannot connect to ethernet or wireless

pacman -Q linux: linux 5.1.11.arch1-1
dmesg: https://pastebin.com/hYDidJnt

loqs

Member

Registered: 2014-03-06

Posts: 19,101

Re: Cannot connect to ethernet or wireless

Does the following succeed?

# modprobe r8169

If not check dmesg see if there are any new messages.

PizzaRollExpert

Member

Registered: 2018-05-20

Posts: 9

Re: Cannot connect to ethernet or wireless

Yes, it succeeds

PizzaRollExpert

Member

Registered: 2018-05-20

Posts: 9

Re: Cannot connect to ethernet or wireless

That fixed my ethernet, but my wifi is still busted.

edit: would the proper thing to do be to mark this one as solved and make a new thread for the wifi or should we keep going?

Last edited by PizzaRollExpert (2019-08-09 21:02:31)

loqs

Member

Registered: 2014-03-06

Posts: 19,101

Re: Cannot connect to ethernet or wireless

I would keep this as one thread.  What module should be loaded for the wireless interface?

PizzaRollExpert

Member

Registered: 2018-05-20

Posts: 9

Re: Cannot connect to ethernet or wireless

Not sure how to find out, lspci isn't giving me anything: https://pastebin.com/2gF5zNAA

Last edited by PizzaRollExpert (2019-08-09 21:16:07)

loqs

Member

Registered: 2014-03-06

Posts: 19,101

Re: Cannot connect to ethernet or wireless

Try `lsusb` Wireless_network_configuration#Check_the_driver_status.

PizzaRollExpert

Member

Registered: 2018-05-20

Posts: 9

Re: Cannot connect to ethernet or wireless

Suppose it might be the second one, but I don't know the module name: https://pastebin.com/8pNSSiK5

loqs

Member

Registered: 2014-03-06

Posts: 19,101

Re: Cannot connect to ethernet or wireless

I do not see it in lsusb either.  Looking back at the dmesg you posted

[ 2559.339367] usb 1-5: new full-speed USB device number 19 using xhci_hcd
[ 2559.483975] usb 1-5: New USB device found, idVendor=b49a, idProduct=04f2, bcdDevice= 2.00
[ 2559.483981] usb 1-5: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 2559.484009] usb 1-5: Product: Bluetooth Radio
[ 2559.484012] usb 1-5: Manufacturer: Realtek
[ 2559.484015] usb 1-5: SerialNumber: 00e04c000001
....
[ 2712.519938] usb 1-5: USB disconnect, device number 19

I think that is the device but it keeps disconnecting.

progandy

Member

Registered: 2012-05-17

Posts: 5,322

Re: Cannot connect to ethernet or wireless

That could be it. It should probably be a combo device with bluetooth via usb and wifi as a pci device. The ids from lsusb lead me to forum posts about asus laptops with rtl8821ae for wifi. Since windows doesn't detect it either, is the wifi card still fully seated in its connector?

Edit: You can get device ids with lspci as well with the parameters "-vnn". That is often more useful than the text to find information.

Last edited by progandy (2019-08-09 22:36:50)

---

| alias CUTF='LANG=en_XX.UTF-8@POSIX ' | alias ENGLISH='LANG=C.UTF-8 ' |

PizzaRollExpert

Member

Registered: 2018-05-20

Posts: 9

Re: Cannot connect to ethernet or wireless

This is what I get on the Ethernet controller with -vnn:

02:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL810xE PCI Express Fast Ethernet controller [10ec:8136] (rev 07)

progandy

Member

Registered: 2012-05-17

Posts: 5,322

Re: Cannot connect to ethernet or wireless

This is what I get on the Ethernet controller with -vnn:

Thanks, but this was more general advice for a future problem since ethernet was already fixed and the wifi module doesn't show up in lspci at all.

---

| alias CUTF='LANG=en_XX.UTF-8@POSIX ' | alias ENGLISH='LANG=C.UTF-8 ' |

ThinkPad

Member

Registered: 2019-01-29

Posts: 125

Re: Cannot connect to ethernet or wireless

iwd should be installed.

Edit: I thought you were on a live usb trying to install arch.

Last edited by ThinkPad (2019-08-12 01:43:25)