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#1 2023-05-06 11:03:48

mtubarch
Member
From: Italy
Registered: 2023-02-16
Posts: 41

[SOLVED]wifi signal level very poor

My laptop is a Tuxedo InfinityBook Pro 14 - Gen7. In the same room as the router, the link quality is 60 - 70%, and the signal level is very poor, 60 - 70% (data from wavemon).

dmesg -w returns no deauthentication errors.

lspci -k returns:

Network controller: Intel Corporation Alder Lake-P PCH CNVi WiFi (rev 01)
DeviceName: Onboard - Ethernet
Subsystem: Intel Corporation Wi-Fi 6 AX201 160MHz
Kernel driver in use: iwlwifi
Kernel modules: iwlwifi

dmesg | grep firmware returns:

iwlwifi 0000:00:14.3: loaded firmware version 74.a5e9588b.0 so-a0-hr-b0-74.ucode op_mode iwlmvm

Any suggestions will be greatly appreciated. Thanks in advance

Last edited by mtubarch (2023-05-18 16:51:14)

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#2 2023-05-07 16:51:10

mtubarch
Member
From: Italy
Registered: 2023-02-16
Posts: 41

Re: [SOLVED]wifi signal level very poor

This is probably a hardware problem. I've contacted the vendor company (Tuxedo Computers), so you can ignore the thread.
Thank you again.

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#3 2023-05-08 14:57:00

ewaller
Administrator
From: Pasadena, CA
Registered: 2009-07-13
Posts: 19,683

Re: [SOLVED]wifi signal level very poor

That chip set is very well supported and, in fact, is the very chip set it my Asus Vivobook. 
What is the output of iw wlan0 station dump   ? (Assuming your network is called wlan0 -- find what yours is called using ip link)


Nothing is too wonderful to be true, if it be consistent with the laws of nature -- Michael Faraday
Sometimes it is the people no one can imagine anything of who do the things no one can imagine. -- Alan Turing
---
How to Ask Questions the Smart Way

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#4 2023-05-08 16:39:04

mtubarch
Member
From: Italy
Registered: 2023-02-16
Posts: 41

Re: [SOLVED]wifi signal level very poor

ewaller wrote:

That chip set is very well supported and, in fact, is the very chip set it my Asus Vivobook. 
What is the output of iw wlan0 station dump   ? (Assuming your network is called wlan0 -- find what yours is called using ip link)

The output is this:

Station e4:8f:34:19:30:98 (on wlo1)
        inactive time:  124 ms
        rx bytes:       3048370
        rx packets:     4361
        tx bytes:       1309301
        tx packets:     2766
        tx retries:     398
        tx failed:      0
        beacon loss:    0
        beacon rx:      1340
        rx drop misc:   27
        signal:         -70 [-70, -70] dBm
        signal avg:     -71 dBm
        beacon signal avg:      -74 dBm
        tx bitrate:     78.0 MBit/s MCS 12
        tx duration:    0 us
        rx bitrate:     39.0 MBit/s MCS 10
        rx duration:    0 us
        authorized:     yes
        authenticated:  yes
        associated:     yes
        preamble:       long
        WMM/WME:        yes
        MFP:            no
        TDLS peer:      no
        DTIM period:    3
        beacon interval:100
        connected time: 221 seconds
        associated at [boottime]:       224.226s
        associated at:  1683563370725 ms
        current time:   1683563591709 ms

Tuxedo Computers website states: «The Wi-Fi connection only works in the immediate vicinity of the router - In this case, it is likely that there is a problem with the wireless LAN antennas in the device».

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#5 2023-05-08 16:52:00

ewaller
Administrator
From: Pasadena, CA
Registered: 2009-07-13
Posts: 19,683

Re: [SOLVED]wifi signal level very poor

I am at work with my laptop with that card, and I am currently seeing -77dBm in an area of the building with just ok coverage.  My reported link quality is 38/70 and my WiFi is performing well.  You are seeing a signal about 6dB stronger than what I am seeing.  Your Tx retries seems a little high.

All you have reported is a low signal level.  Are you experiencing any other performance issues with the link?
Is this in the 2.4GHz band or the 5GHz band?


Nothing is too wonderful to be true, if it be consistent with the laws of nature -- Michael Faraday
Sometimes it is the people no one can imagine anything of who do the things no one can imagine. -- Alan Turing
---
How to Ask Questions the Smart Way

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#6 2023-05-08 17:07:59

mtubarch
Member
From: Italy
Registered: 2023-02-16
Posts: 41

Re: [SOLVED]wifi signal level very poor

ewaller wrote:

I am at work with my laptop with that card, and I am currently seeing -77dBm in an area of the building with just ok coverage.  My reported link quality is 38/70 and my WiFi is performing well.  You are seeing a signal about 6dB stronger than what I am seeing.  Your Tx retries seems a little high.

All you have reported is a low signal level.  Are you experiencing any other performance issues with the link?
Is this in the 2.4GHz band or the 5GHz band?

Now the link quality is 57% (source: wavemon) and the band is the 2.4Hgz, but after walking up to the router the band moved to 5GHz.
What puzzles me is that my old ASUS with the same distro, in the same network and in the same location has a good signal level. It does not seem possible that a new laptop with the characteristics of the InfinityBook Pro Gen 7 could have a clearly worse performance than a 2015-laptop.

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#7 2023-05-18 16:50:25

mtubarch
Member
From: Italy
Registered: 2023-02-16
Posts: 41

Re: [SOLVED]wifi signal level very poor

I mark the thread as "solved" because there is no Arch Linux-related issues. Thanks.

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