1y ago

Problem with WiFi driver in arch linux

Hi everyone

I've been trying to solve a problem with my arch (endeavour) instalation and wanted to know if anyone here can help

Everything is working well, excepting the WiFi connection. It is extremely slow, sometimes disconnecting from the network, and in the task bar, the WiFi icon shows that the signal strength is weak, although the router is in the same room. Switching between r8168 and r8169 as recommended doesnt work. Any ideas?

@linux

26 comments

Can you run lspci -vnn | grep -i net and post it's output here, thank you.
- 01:00.0 Network controller [0280]: Intel Corporation Wireless 8265 / 8275 [8086:24fd] (rev 78)
  02:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 15)
  Subsystem: ASUSTeK Computer Inc. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [1043:200f]
  
  I did some digging.
  \ Check if iwlwifi kernel module is loaded with
  \ lsmod | grep iwlwifi
  \ If not sudo modprobe iwlwifi
  \ Then in /etc/modprobe.d/iwlwifi.conf add
  
  options iwlwifi swcrypto=1 11n_disable=1
  And reboot, check if the problem is still persistent. If it is let me know, as there's a few more things we can try like disabling power management.

Terrible idea here: Use ndiswrapper to make it work with a Windows driver!
Ignore me though, that'd be wacky. Just listen to Rustmilian.
- I might do that if nothing else works, but it'd be really weird if there is not a simple native linux solution, I'm just not an expert lol
  
  Yeah, I was mostly being silly: You shouldn't have to do that but I'm no expert

I had the same problem with mint, the wifi worked on other distros but not in mint, I run the next lines to fix it

sudo modprove -r rtl8723be sudo modprove rtl8723be ant_sel=1
rtl8723be is my wifi card, you can try to use the same but with yours.
- @drivingcrooner @linux Just did it, but no change at all. I think that would be the solution if the card weren't recognized, but the issue here is that it connects but erroneously reports weak wifi signal
  
  Sorry it didn't worked. Mine have the problem, it's recognize that have a wifi connection and the available networks, but with a really weak signal.The problem with my router is that it has two antennas, for some reason sometimes the second one, who doesn't work on mint, get selected but I run that lines and work again. The first line is for reseting the router, the second is for turning out again with antenna 1 selected.

Ah yes. I had the same issue. The realtek drivers for Wi-Fi suck on Linux. I never managed to solve it and in the end I bought an Intel AX200 and never had any more issues.
If you have to option to switch to an Intel Wi-Fi card I would highly recommend it.
- @Link @linux Yeah, I'm thinking that that could be the way. I've already had a lot of progress maintaining the connection by configuring iwlwifi but it is still way slower than it should
  
  You can try the LTS kernel if that is available on your distro but honestly Intel Wi-Fi cards are the way to go on Linux. I wouldn't buy anything else!
  Also I’m not sure you can @ someone that way.

Make sure that power saving is disabled.
- @knobbysideup @linux Yep, it is disabled

~~You should add which wifi card we're talking about. Maybe someone has already some experience with it. lspci or lsusb will help with that.~~
Edit: Forget i asked. It's further below.

Out of curiosity, what's the output of # dmesg | grep iwlwifi?
- @Kalcifer @linux
  [ 5.010372] iwlwifi 0000:01:00.0: enabling device (0000 - 0002)
  [ 5.108148] iwlwifi 0000:01:00.0: Detected crf-id 0xbadcafe, cnv-id 0x10 wfpm id 0x80000000
  [ 5.108171] iwlwifi 0000:01:00.0: PCI dev 24fd/0110, rev=0x230, rfid=0xd55555d5
  [ 5.137796] iwlwifi 0000:01:00.0: loaded firmware version 36.ca7b901d.0 8265-36.ucode opmode iwlmvm
  [ 5.556122] iwlwifi 0000:01:00.0: Detected Intel(R) Dual Band Wireless AC 8265, REV=0x230
  [ 5.614915] iwlwifi 0000:01:00.0: base HW address: 60:f6:77:eb:1e:6e, OTP minor version: 0x0
  [ 5.689840] iwlwifi 0000:01:00.0: iwlmvm doesn't allow to disable HW crypto, check swcrypto module parameter
  [ 13.355547] iwlwifi 0000:01:00.0: Registered PHC clock: iwlwifi-PTP, with index: 0
  
  Ok, seems fine.

26 comments