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#26 2022-05-18 06:13:05

seth
Member
Registered: 2012-09-03
Posts: 29,725

Re: [SOLVED] Intel AX200 | 10x slower WI-FI speeds compared to windows 10

seth wrote:
seth wrote:

But the screaming difference is that manjaro is using wpa_supplicant

Also check for differences in the fast and slow boot journals (eg. whether it connects 5GHz / 2.4 GHz or so)

Test the behavior w/ wpa_supplicant and do a station dump, https://wiki.archlinux.org/title/Networ … _interface
Manjaro connects to 48:4b:d4:6c:f2:ed (SSID='I Dont Know' freq=5785 MHz) but there might be a 2.4GHz AP w/ the same SSID that you connect to on arch

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#27 2022-05-18 08:18:45

Pollastre
Member
Registered: 2021-12-27
Posts: 19

Re: [SOLVED] Intel AX200 | 10x slower WI-FI speeds compared to windows 10

seth wrote:
seth wrote:
seth wrote:

But the screaming difference is that manjaro is using wpa_supplicant

Also check for differences in the fast and slow boot journals (eg. whether it connects 5GHz / 2.4 GHz or so)

Test the behavior w/ wpa_supplicant and do a station dump, https://wiki.archlinux.org/title/Networ … _interface
Manjaro connects to 48:4b:d4:6c:f2:ed (SSID='I Dont Know' freq=5785 MHz) but there might be a 2.4GHz AP w/ the same SSID that you connect to on arch

Tested behavior with wpa_supplicant, no improvement in speed (15-20mbps on speedtest.net). Here's the result of the station dump:

Station 48:4b:d4:6c:f2:ed (on wlan0)
	inactive time:	4 ms
	rx bytes:	188797848
	rx packets:	134925
	tx bytes:	8048543
	tx packets:	51029
	tx retries:	5625
	tx failed:	0
	beacon loss:	0
	beacon rx:	10931
	rx drop misc:	1116
	signal:  	-57 [-57, -95] dBm
	signal avg:	-59 dBm
	beacon signal avg:	-55 dBm
	tx bitrate:	54.0 MBit/s
	tx duration:	0 us
	rx bitrate:	54.0 MBit/s
	rx duration:	0 us
	authorized:	yes
	authenticated:	yes
	associated:	yes
	preamble:	long
	WMM/WME:	yes
	MFP:		no
	TDLS peer:	no
	DTIM period:	1
	beacon interval:100
	short slot time:yes
	connected time:	1130 seconds
	associated at [boottime]:	1679.783s
	associated at:	1652860436793 ms
	current time:	1652861566511 ms

I can confirm that the network with the bssid '48:4b:d4:6c:f2:ed' is still the 5ghz one (shown as 5220 signal level in wpa_supplicant). Sorry for the late response, I'm still figuring out notifications for this

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#28 2022-05-19 14:01:19

seth
Member
Registered: 2012-09-03
Posts: 29,725

Re: [SOLVED] Intel AX200 | 10x slower WI-FI speeds compared to windows 10

Is this still w/ "11n_disable=1"?
54.0 MBit/s at 5GHz sounds like it's 802.11a (where this is the maximum throughput)
Also please post the journal w/ the wpa_supplicant connection.

on speedtest.net

Please take the browser out of the equation and pick a static peer for more consistent tests, eg.
https://bbs.archlinux.org/viewtopic.php … 6#p2017886

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#29 2022-05-19 15:07:25

Pollastre
Member
Registered: 2021-12-27
Posts: 19

Re: [SOLVED] Intel AX200 | 10x slower WI-FI speeds compared to windows 10

Yes, this is still with 11n_disable=1. With the speed test you gave me, I got ~ 2.13MB/s (not mbps) using NetworkManager. Using wpa_supplicant I get around 2.24MB/s, so not too much of a difference. Here's my 'journalctl -b' using wpa_supplicant.

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#30 2022-05-19 18:16:45

seth
Member
Registered: 2012-09-03
Posts: 29,725

Re: [SOLVED] Intel AX200 | 10x slower WI-FI speeds compared to windows 10

Yes, this is still with 11n_disable=1

You should test w/o it.

The journal segment only shows some "sudo wpa_cli" audits but no actual wpa_supplicant messages - I guess NM starts it in debug mode or at least not quiet. There're not even firmware crashes etc.
How did you invoke wpa_supplicant and did you terminate NM and iwd first?

=> Juse use wpa_supplicant as NM backend, connect with that and then post the complete journal.

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#31 2022-05-19 20:42:01

Pollastre
Member
Registered: 2021-12-27
Posts: 19

Re: [SOLVED] Intel AX200 | 10x slower WI-FI speeds compared to windows 10

seth wrote:

How did you invoke wpa_supplicant and did you terminate NM and iwd first?

I started wpa_supplicant with:

# wpa_supplicant -B -i interface -c /etc/wpa_supplicant/wpa_supplicant.conf

  as shown on the wiki. For the test above I did terminate NM, but not iwd. Tested again with iwd and NM terminated, results are the same.

Tested with wpa_supplicant as backend to NetworkManager (assuming this is done just by renaming/removing the file setting it as iwd) and got an average of 2.3MB/s on the speedtest (the one you linked me to)
Made sure to remove 11n_disable=1, but I'm not 100% if that affected anything, since I'm changing that setting in iwlwifi settings.

Here's the `journalctl -b` from this test

Sorry if I misunderstood anything you asked of me.

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#32 2022-05-20 15:04:24

seth
Member
Registered: 2012-09-03
Posts: 29,725

Re: [SOLVED] Intel AX200 | 10x slower WI-FI speeds compared to windows 10

… sorry but NM doesn't say… sigh.
=> check "iwconfig" … you mostly waht to know whether this is a 20MHz channel or more (40/80MHz)

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#33 2022-05-20 23:22:27

Pollastre
Member
Registered: 2021-12-27
Posts: 19

Re: [SOLVED] Intel AX200 | 10x slower WI-FI speeds compared to windows 10

Here's the output of running 'iwconfig'

lo        no wireless extensions.

enp6s0    no wireless extensions.

wlan0     IEEE 802.11  ESSID:"SanCal"  
          Mode:Managed  Frequency:5.22 GHz  Access Point: 48:4B:D4:6C:F2:ED   
          Bit Rate=54 Mb/s   Tx-Power=22 dBm   
          Retry short limit:7   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off
          Link Quality=55/70  Signal level=-55 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:15139   Missed beacon:0

Sorry for the late response

Last edited by Pollastre (2022-05-20 23:22:44)

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#34 2022-05-21 05:51:50

seth
Member
Registered: 2012-09-03
Posts: 29,725

Re: [SOLVED] Intel AX200 | 10x slower WI-FI speeds compared to windows 10

wtf

iw dev wlan0 info

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#35 2022-05-21 05:52:57

Pollastre
Member
Registered: 2021-12-27
Posts: 19

Re: [SOLVED] Intel AX200 | 10x slower WI-FI speeds compared to windows 10

Ah sorry, here ya go:

Interface wlan0
	ifindex 4
	wdev 0x2
	addr 60:f2:62:b7:85:09
	ssid SanCal
	type managed
	wiphy 0
	channel 44 (5220 MHz), width: 80 MHz, center1: 5210 MHz
	txpower 22.00 dBm
	multicast TXQ:
		qsz-byt	qsz-pkt	flows	drops	marks	overlmt	hashcol	tx-bytes	tx-packets
		0	0	0	0	0	0	0	0		0

Seems to be 80 MHz

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#36 2022-05-21 06:49:18

seth
Member
Registered: 2012-09-03
Posts: 29,725

Re: [SOLVED] Intel AX200 | 10x slower WI-FI speeds compared to windows 10

No, it's not your fault at all, just nothing seems to report the channel width anymore.

You're however on an 80MHz channel what means you're on 802.11ac or 802.11ax, so the underperformance cannot be explained by an insufficient protocol sad

The signal isn't super-aswesome, but also not super bad (I could get 16Mbit/s out of a weaker 802.11g connection)

You did connect to a diffrent AP on manjaro, though (SSID='I Dont Know' freq=5785 MHz - even if the SSID is obfuscated, that's a different channel)?
You could try "iwlwifi.disable_11ac=true" and "iwlwifi.disable_11ax=true" to avoid the higher protocols (start w/ ax and then try to disable both) and (hopefully) drop into 802.11n and see whether that gets you better results.

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#37 2022-05-21 08:34:12

Pollastre
Member
Registered: 2021-12-27
Posts: 19

Re: [SOLVED] Intel AX200 | 10x slower WI-FI speeds compared to windows 10

seth wrote:

You could try "iwlwifi.disable_11ac=true" and "iwlwifi.disable_11ax=true" to avoid the higher protocols (start w/ ax and then try to disable both) and (hopefully) drop into 802.11n and see whether that gets you better results.

Adding "iwlwifi.disable_11ax=true" (to my iwlwifi.conf to anyone reading this) seemed to fix it, giving me 17.5MB/s on the speedtest, which is about what I'd usually get on manjaro / windows. Marking thread as solved, unless there was anything else you wanted to run me through. Will edit if it ends up only working for a bit for some reason

Last edited by Pollastre (2022-05-21 08:36:12)

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#38 2022-05-21 10:10:07

seth
Member
Registered: 2012-09-03
Posts: 29,725

Re: [SOLVED] Intel AX200 | 10x slower WI-FI speeds compared to windows 10

It might be benefitial for future readers to know more about the context, eg. whether you're now connecting on a different channel or whether Manjaro (assumign you still have access to that environment) simply disabled ax ("systool -vm iwlwifi") and maybe what the troublesome AP (ISP router/vendor/model/stuff) is (assuming it's down to that AP, providing a flawed ax connection)

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#39 2022-05-21 10:27:41

Pollastre
Member
Registered: 2021-12-27
Posts: 19

Re: [SOLVED] Intel AX200 | 10x slower WI-FI speeds compared to windows 10

Sadly the manjaro environment used before no longer exists. The wifi worked fine on my fedora install that i haven’t deleted yet, so later I’ll check to see if it has anything useful for future readers.

Would like to also note that it’s the same AP, just a different name/ssid. I’ll try to get more info on the AP later and post it here aswell

On fedora, it doesn't seem to be using disable_11c or disable_11ax. Here's the result of `systool -vm iwlwifi` on fedora:

Module = "iwlwifi"

  Attributes:
    coresize            = "389120"
    initsize            = "0"
    initstate           = "live"
    refcnt              = "1"
    rhelversion         = "9.99"
    taint               = ""
    uevent              = <store method only>

  Parameters:
    11n_disable         = "0"
    amsdu_size          = "0"
    bt_coex_active      = "Y"
    debug               = "0"
    disable_11ac        = "N"
    disable_11ax        = "N"
    enable_ini          = "Y"
    fw_restart          = "Y"
    led_mode            = "0"
    nvm_file            = "(null)"
    power_level         = "0"
    power_save          = "N"
    remove_when_gone    = "N"
    swcrypto            = "0"
    uapsd_disable       = "3"

  Sections:

Last edited by Pollastre (2022-05-23 02:52:04)

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#40 2022-06-10 22:36:39

cris223
Member
Registered: 2022-06-10
Posts: 1

Re: [SOLVED] Intel AX200 | 10x slower WI-FI speeds compared to windows 10

I don't know if it will help you but i've noticed a difference of speed (better) on my "00:14.3 Network controller: Intel Corporation Alder Lake-P PCH CNVi WiFi (rev 01)"  if i don't use iwd backend, no config of iwlwifi in /etc/modprobe.d/ and uninstalled iwd using only wpa_supplicant
kernel 5.18.x

Last edited by cris223 (2022-06-10 22:53:36)

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