5 GHz wifi drops out periodically

Support Network
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1

Hello!
Periodically my laptop loses connection to the 5GHz wi-fi network. I have to switch to 2.4GHz.

My laptop hardware # dmidecode 3.5 Getting SMBIOS data from sysfs. SMBIOS 3.3.0 present. Table at 0x107F7F6000.

Handle 0x0000, DMI type 0, 26 bytes
BIOS Information
Vendor: coreboot
Version: 2023-09-08_42bf7a6
Release Date: 09/08/2023
ROM Size: 32 MB
Characteristics:
PCI is supported
PC Card (PCMCIA) is supported
BIOS is upgradeable
Selectable boot is supported
ACPI is supported
Targeted content distribution is supported
BIOS Revision: 4.19
Firmware Revision: 0.0

Handle 0x0001, DMI type 1, 27 bytes
System Information
Manufacturer: System76
Product Name: Gazelle
Version: gaze18
Serial Number: 123456789
UUID: Not Settable
Wake-up Type: Power Switch
SKU Number: Not Specified
Family: Not Specified

Handle 0x0002, DMI type 2, 14 bytes
Base Board Information
Manufacturer: System76
Product Name: Gazelle
Version: gaze18
Serial Number: 123456789
Asset Tag: Not Specified
Features: None
Location In Chassis: Not Specified
Chassis Handle: 0x0003
Type: Motherboard

Handle 0x0003, DMI type 3, 22 bytes
Chassis Information
Manufacturer: System76
Type: Laptop
Lock: Not Present
Version: Not Specified
Serial Number: Not Specified
Asset Tag: Not Specified
Boot-up State: Safe
Power Supply State: Safe
Thermal State: Safe
Security Status: None
OEM Information: 0x00000000
Height: Unspecified
Number Of Power Cords: 1
Contained Elements: 0
SKU Number: Not Specified

Handle 0x0004, DMI type 4, 48 bytes
Processor Information
Socket Designation: CPU0
Type: Central Processor
Family: Pentium Pro
Manufacturer: GenuineIntel
ID: A2 06 0B 00 FF FB EB BF
Signature: Type 0, Family 6, Model 186, Stepping 2
Flags:
FPU (Floating-point unit on-chip)
VME (Virtual mode extension)
DE (Debugging extension)
PSE (Page size extension)
TSC (Time stamp counter)
MSR (Model specific registers)
PAE (Physical address extension)
MCE (Machine check exception)
CX8 (CMPXCHG8 instruction supported)
APIC (On-chip APIC hardware supported)
SEP (Fast system call)
MTRR (Memory type range registers)
PGE (Page global enable)
MCA (Machine check architecture)
CMOV (Conditional move instruction supported)
PAT (Page attribute table)
PSE-36 (36-bit page size extension)
CLFSH (CLFLUSH instruction supported)
DS (Debug store)
ACPI (ACPI supported)
MMX (MMX technology supported)
FXSR (FXSAVE and FXSTOR instructions supported)
SSE (Streaming SIMD extensions)
SSE2 (Streaming SIMD extensions 2)
SS (Self-snoop)
HTT (Multi-threading)
TM (Thermal monitor supported)
PBE (Pending break enabled)
Version: 13th Gen Intel(R) Coreā„¢ i9-13900H
Voltage: 0.7 V
External Clock: 100 MHz
Max Speed: 5400 MHz
Current Speed: 3000 MHz
Status: Populated, Enabled
Upgrade:
L1 Cache Handle: 0x0006
L2 Cache Handle: 0x0007
L3 Cache Handle: 0x0008
Serial Number: Not Specified
Asset Tag: Not Specified
Part Number: Not Specified
Core Count: 10
Core Enabled: 10
Thread Count: 20
Characteristics:
Hardware Thread
Execute Protection
Enhanced Virtualization

Handle 0x0005, DMI type 7, 27 bytes
Cache Information
Socket Designation: CACHE1
Configuration: Enabled, Not Socketed, Level 1
Operational Mode: Unknown
Location: Internal
Installed Size: 480 kB
Maximum Size: 480 kB
Supported SRAM Types:
Unknown
Installed SRAM Type: Unknown
Speed: Unknown
Error Correction Type: Unknown
System Type: Data
Associativity: 12-way Set-associative

Handle 0x0006, DMI type 7, 27 bytes
Cache Information
Socket Designation: CACHE1
Configuration: Enabled, Not Socketed, Level 1
Operational Mode: Unknown
Location: Internal
Installed Size: 320 kB
Maximum Size: 320 kB
Supported SRAM Types:
Unknown
Installed SRAM Type: Unknown
Speed: Unknown
Error Correction Type: Unknown
System Type: Instruction
Associativity: 8-way Set-associative

Handle 0x0007, DMI type 7, 27 bytes
Cache Information
Socket Designation: CACHE2
Configuration: Enabled, Not Socketed, Level 2
Operational Mode: Unknown
Location: Internal
Installed Size: 2560 kB
Maximum Size: 2560 kB
Supported SRAM Types:
Unknown
Installed SRAM Type: Unknown
Speed: Unknown
Error Correction Type: Unknown
System Type: Unified
Associativity: Unknown

Handle 0x0008, DMI type 7, 27 bytes
Cache Information
Socket Designation: CACHE3
Configuration: Enabled, Not Socketed, Level 3
Operational Mode: Unknown
Location: Internal
Installed Size: 24 MB
Maximum Size: 24 MB
Supported SRAM Types:
Unknown
Installed SRAM Type: Unknown
Speed: Unknown
Error Correction Type: Unknown
System Type: Unified
Associativity: 12-way Set-associative

Handle 0x0009, DMI type 16, 23 bytes
Physical Memory Array
Location: System Board Or Motherboard
Use: System Memory
Error Correction Type: None
Maximum Capacity: 128 GB
Error Information Handle: Not Provided
Number Of Devices: 2

Handle 0x000A, DMI type 17, 40 bytes
Memory Device
Array Handle: 0x0009
Error Information Handle: Not Provided
Total Width: 64 bits
Data Width: 64 bits
Size: 32 GB
Form Factor: SODIMM
Set: None
Locator: Channel-0-DIMM-0
Bank Locator: BANK 0
Type: DDR4
Type Detail: Unknown Synchronous
Speed: 3200 MT/s
Manufacturer: Unknown (4589)
Serial Number: 02323201
Asset Tag: Channel-0-DIMM-0-AssetTag
Part Number: NMSO432F82-3200E
Rank: 2
Configured Memory Speed: 3200 MT/s
Minimum Voltage: 1.2 V
Maximum Voltage: 1.2 V
Configured Voltage: 1.2 V

Handle 0x000B, DMI type 17, 40 bytes
Memory Device
Array Handle: 0x0009
Error Information Handle: Not Provided
Total Width: 64 bits
Data Width: 64 bits
Size: 32 GB
Form Factor: SODIMM
Set: None
Locator: Channel-0-DIMM-0
Bank Locator: BANK 0
Type: DDR4
Type Detail: Unknown Synchronous
Speed: 3200 MT/s
Manufacturer: Unknown (4589)
Serial Number: 02323201
Asset Tag: Channel-0-DIMM-0-AssetTag
Part Number: NMSO432F82-3200E
Rank: 2
Configured Memory Speed: 3200 MT/s
Minimum Voltage: 1.2 V
Maximum Voltage: 1.2 V
Configured Voltage: 1.2 V

Handle 0x000C, DMI type 19, 31 bytes
Memory Array Mapped Address
Starting Address: 0x00000000000
Ending Address: 0x00FFFFFFFFF
Range Size: 64 GB
Physical Array Handle: 0x0009
Partition Width: 2

Handle 0x000D, DMI type 20, 35 bytes
Memory Device Mapped Address
Starting Address: 0x00000000000
Ending Address: 0x007FFFFFFFF
Range Size: 32 GB
Physical Device Handle: 0x000A
Memory Array Mapped Address Handle: 0x000C
Partition Row Position: Unknown
Interleave Position: Unknown
Interleaved Data Depth: Unknown

Handle 0x000E, DMI type 20, 35 bytes
Memory Device Mapped Address
Starting Address: 0x00800000000
Ending Address: 0x00FFFFFFFFF
Range Size: 32 GB
Physical Device Handle: 0x000A
Memory Array Mapped Address Handle: 0x000C
Partition Row Position: Unknown
Interleave Position: Unknown
Interleaved Data Depth: Unknown

Handle 0x000F, DMI type 32, 11 bytes
System Boot Information
Status: No errors detected

Handle 0x0010, DMI type 41, 11 bytes
Onboard Device
Reference Designation: VGA compatible controller
Type: Video
Status: Enabled
Type Instance: 0
Bus Address: 0000:00:02.0

Handle 0x0011, DMI type 41, 11 bytes
Onboard Device
Reference Designation: SATA controller
Type: SATA Controller
Status: Enabled
Type Instance: 0
Bus Address: 0000:00:17.0

Handle 0x0012, DMI type 133, 5 bytes
OEM-specific Type
Header and Data:
85 05 12 00 01
Strings:
KHOIHGIUCCHHII

Handle 0x0013, DMI type 41, 11 bytes
Onboard Device
Reference Designation: Ethernet controller
Type: Ethernet
Status: Enabled
Type Instance: 0
Bus Address: 0000:03:00.0

Handle 0xFEFF, DMI type 127, 4 bytes
End Of Table

My wi-fi card 00:14.3 Network controller: Intel Corporation Raptor Lake PCH CNVi WiFi (rev 01) Subsystem: Intel Corporation Device 0094
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin C routed to IRQ 18
Region 0: Memory at 8081c000 (64-bit, non-prefetchable) [size=16K]
Capabilities:
Kernel driver in use: iwlwifi
Kernel modules: iwlwifi
journalctl -p 3 -xb journalctl -p 3 -xb --since "10min ago"
May 17 22:51:24 system76 kernel: iwlwifi 0000:00:14.3: WRT: Invalid buffer destination
dmesg -l err [ 0.000000] x86/mktme: No known encryption algorithm is supported: 0x4 [ 0.533176] ACPI Error: AE_NOT_FOUND, While resolving a named reference package element - \_SB_.PCI0.SATA (20230628/dspkginit-438)

[ 3.361468] iwlwifi 0000:00:14.3: WRT: Invalid buffer destination
[ 3.408286] Bluetooth: hci0: No support for _PRR ACPI method
[ 4.847230] Bluetooth: hci0: Malformed MSFT vendor event: 0x02
[ 6.343478] iwlwifi 0000:00:14.3: WRT: Invalid buffer destination
[ 6.649935] iwlwifi 0000:00:14.3: WRT: Invalid buffer destination
[ 217.585572] iwlwifi 0000:00:14.3: WRT: Invalid buffer destination
[ 236.165759] iwlwifi 0000:00:14.3: WRT: Invalid buffer destination
[ 278.781088] iwlwifi 0000:00:14.3: WRT: Invalid buffer destination
[ 361.867314] i2c_hid_acpi i2c-ELAN0412:00: i2c_hid_get_input: incomplete report (14/60416)
[ 2877.859420] x86/tme: configuration is inconsistent between CPUs
[ 2877.859425] x86/tme: MKTME is not usable
[ 2878.285554] iwlwifi 0000:00:14.3: WRT: Invalid buffer destination
[ 2879.317271] Bluetooth: hci0: No support for _PRR ACPI method
[ 2880.711024] Bluetooth: hci0: Malformed MSFT vendor event: 0x02
[ 2881.308660] iwlwifi 0000:00:14.3: WRT: Invalid buffer destination
[ 7051.430550] Bluetooth: hci0: SCO packet for unknown connection handle 257
[ 7071.370695] Bluetooth: hci0: urb 0000000003e2f9cb submission failed (90)
[ 7071.370741] Bluetooth: hci0: sending frame failed (-90)
[ 7076.645583] Bluetooth: hci0: SCO packet for unknown connection handle 257
[ 7092.358601] iwlwifi 0000:00:14.3: WRT: Invalid buffer destination
[ 7143.768643] iwlwifi 0000:00:14.3: WRT: Invalid buffer destination
[ 7154.893204] Bluetooth: hci0: urb 00000000f1fd4b0a submission failed (90)
[ 7154.893208] Bluetooth: hci0: sending frame failed (-90)
[ 7595.489687] Bluetooth: hci0: SCO packet for unknown connection handle 257
[11318.178743] iwlwifi 0000:00:14.3: WRT: Invalid buffer destination
[11319.242513] Bluetooth: hci0: No support for _PRR ACPI method
[11320.659356] Bluetooth: hci0: Malformed MSFT vendor event: 0x02
[11321.148615] iwlwifi 0000:00:14.3: WRT: Invalid buffer destination
[13272.991031] FAT-fs (sda1): unable to read boot sector to mark fs as dirty
[14331.781524] iwlwifi 0000:00:14.3: WRT: Invalid buffer destination
[14332.818213] Bluetooth: hci0: No support for _PRR ACPI method
[14334.216180] Bluetooth: hci0: Malformed MSFT vendor event: 0x02
[14334.859818] iwlwifi 0000:00:14.3: WRT: Invalid buffer destination
[21552.378129] iwlwifi 0000:00:14.3: WRT: Invalid buffer destination
[21974.607978] iwlwifi 0000:00:14.3: WRT: Invalid buffer destination

I found the appropriate [topic on kernel.org](https://bugzilla.kernel.org/show_bug.cgi?id=218220).

Could you please tell me how to solve this problem? Itā€™s infuriating.
Does it make sense to replace the router? Would it make a difference?

2

For reference:

take note of the tradeoffs ā€¦ changing the router ā€¦ probably wonā€™t make a differenceā€¦

3

Iā€™m aware, thank you)
I can be working on my laptop, then I can pick up my phone and look at a message in slack and then bang, I see that the internet on my laptop is down - it wonā€™t load pages. At first I blamed it on the phone, but then I noticed that this happens even just like that, for example, when Iā€™m sitting in a video conference in zoom. during an hour it can be disconnected several times! and only recently have I realized that simply reconnecting to a wi-fi connection doesnā€™t save the situation, but changing the network helps! 2.4Ghz network is stable for this laptop! WTF

4

how far you are from the router is the problemā€¦ can you reposition the router so that it is closer to your work spaces ā€¦ also large metal objects like appliances between you and the router are known problemā€¦

5

it doesnā€™t depend on my location. the problem is reproducible at any distance - whether at point-blank range or at a some distance.

6

Well, look at the logs. itā€™s obviously not network loss)

7

can you provide inxi -bnNz output

1 Like
8 
inxi -bnNz

In the future please include the ā€˜filterā€™ (z) flag, especially when requesting network information.

1 Like
9 
System:
  Kernel: 6.8.9-3-MANJARO arch: x86_64 bits: 64
  Desktop: GNOME v: 46.1 Distro: Manjaro Linux
Machine:
  Type: Laptop System: System76 product: Gazelle v: gaze18
    serial: <superuser required>
  Mobo: System76 model: Gazelle v: gaze18 serial: <superuser required>
    UEFI: coreboot v: 2023-09-08_42bf7a6 date: 09/08/2023
Battery:
  ID-1: BAT0 charge: 46.6 Wh (100.0%) condition: 46.6/54.8 Wh (85.0%)
CPU:
  Info: 14-core (6-mt/8-st) 13th Gen Intel Core i9-13900H [MST AMCP]
    speed (MHz): avg: 519 min/max: 400/5200:5400:4100
Graphics:
  Device-1: Intel Raptor Lake-P [Iris Xe Graphics] driver: i915 v: kernel
  Device-2: NVIDIA GA107M [GeForce RTX 3050 Mobile] driver: nvidia v: 550.78
  Device-3: Bison BisonCam NB Pro driver: uvcvideo type: USB
  Display: x11 server: X.org v: 1.21.1.13 with: Xwayland v: 23.2.6 driver:
    X: loaded: modesetting unloaded: nvidia dri: iris gpu: i915
    resolution: <missing: xdpyinfo/xrandr> resolution: 1920x1080
  API: OpenGL v: 4.6.0 compat-v: 4.5 vendor: intel mesa v: 24.0.6-manjaro1.1
    renderer: Mesa Intel Graphics (RPL-P)
Network:
  Device-1: Intel Raptor Lake PCH CNVi WiFi driver: iwlwifi
  IF: wlp0s20f3 state: up mac: <filter>
  Device-2: Realtek RTL8111/8168/8211/8411 PCI Express Gigabit Ethernet
    driver: r8169
  IF: eno0 state: down mac: <filter>
  IF-ID-1: docker0 state: up speed: 10000 Mbps duplex: unknown mac: <filter>
  IF-ID-2: vethee64f17 state: up speed: 10000 Mbps duplex: full
    mac: <filter>
Drives:
  Local Storage: total: 931.51 GiB used: 74.27 GiB (8.0%)
Info:
  Memory: total: 64 GiB available: 62.64 GiB used: 7.52 GiB (12.0%)
  Processes: 431 Uptime: 1d 1h 35m Shell: Zsh inxi: 3.3.34
10

have you got another kernel version installed ā€¦ most recent LTS or 6.9 ā€¦ a quick glance at your buffer issue suggests ā€¦ it may be related to a firmware loading error ā€¦

12

I usually keep an LTS kernel installed for troubleshooting purposes ā€¦ the iwlwifi module firmware loading has been an intermittent issue for quite some time ā€¦ find a kernel that works and stick with it for critical work ā€¦ test newer versions for improvementsā€¦
the kernel bug number you noted earlier does not seem to existā€¦I tried againā€¦ now it shows

13

You can try disabling mac randomization and power saving, origin of some wifi problems (disconnections):

1 Like
14

well, Iā€™ve rolled back to kernel 6.6, letā€™s see if that helps

15

Unfortunately, it didnā€™t help :slightly_frowning_face:

16

itā€™s worth to check whatā€™s going on in the ā€œairā€. maybe itā€™s simply because your ā€œairā€ is too much polluted/used. you can use linssid to investigate

pamac install linssid
17

I changed my router from netgear to tp-link and the problem disappeared!
rofl
I will never buy a netgear again.

18

please mark your topic as solved

19

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