My wifi connection became noticeably slow recently. To bisect the issue I’ve tried rolling back to kernel 6.11 and it works fine there but doesn’t work on the latest HWE (6.17.0-19-generic). I can see that the connection speed in the applet shows 54 mbps. Any idea what the issue might be? ChatGPT said it might be due to the interface country not being set correctly since the channel shows no HT - is that right? Here is my network info:
iw reg get; iw dev wlp0s20f3 info; sudo lshw -C network
global
country US: DFS-FCC
(902 - 904 @ 2), (N/A, 30), (N/A)
(904 - 920 @ 16), (N/A, 30), (N/A)
(920 - 928 @ 8), (N/A, 30), (N/A)
(2400 - 2472 @ 40), (N/A, 30), (N/A)
(5150 - 5250 @ 80), (N/A, 23), (N/A), AUTO-BW
(5250 - 5350 @ 80), (N/A, 24), (0 ms), DFS, AUTO-BW
(5470 - 5730 @ 160), (N/A, 24), (0 ms), DFS
(5730 - 5850 @ 80), (N/A, 30), (N/A), AUTO-BW
(5850 - 5895 @ 40), (N/A, 27), (N/A), NO-OUTDOOR, AUTO-BW, PASSIVE-SCAN
(5925 - 7125 @ 320), (N/A, 12), (N/A), NO-OUTDOOR, PASSIVE-SCAN
(57240 - 71000 @ 2160), (N/A, 40), (N/A)
phy#0 (self-managed)
country US: DFS-UNSET
(2402 - 2437 @ 40), (6, 22), (N/A), AUTO-BW, NO-HT40MINUS, NO-80MHZ, NO-160MHZ
(2422 - 2462 @ 40), (6, 22), (N/A), AUTO-BW, NO-80MHZ, NO-160MHZ
(2447 - 2482 @ 40), (6, 22), (N/A), AUTO-BW, NO-HT40PLUS, NO-80MHZ, NO-160MHZ
(5170 - 5190 @ 160), (6, 22), (N/A), AUTO-BW, NO-HT40MINUS, NO-320MHZ
(5190 - 5210 @ 160), (6, 22), (N/A), AUTO-BW, NO-HT40PLUS, NO-320MHZ
(5210 - 5230 @ 160), (6, 22), (N/A), AUTO-BW, NO-HT40MINUS, NO-320MHZ
(5230 - 5250 @ 160), (6, 22), (N/A), AUTO-BW, NO-HT40PLUS, NO-320MHZ
(5250 - 5270 @ 160), (6, 22), (0 ms), DFS, AUTO-BW, IR-CONCURRENT, NO-HT40MINUS, NO-320MHZ
(5270 - 5290 @ 160), (6, 22), (0 ms), DFS, AUTO-BW, IR-CONCURRENT, NO-HT40PLUS, NO-320MHZ
(5290 - 5310 @ 160), (6, 22), (0 ms), DFS, AUTO-BW, IR-CONCURRENT, NO-HT40MINUS, NO-320MHZ
(5310 - 5330 @ 160), (6, 22), (0 ms), DFS, AUTO-BW, IR-CONCURRENT, NO-HT40PLUS, NO-320MHZ
(5490 - 5510 @ 160), (6, 22), (0 ms), DFS, AUTO-BW, IR-CONCURRENT, NO-HT40MINUS, NO-320MHZ
(5510 - 5530 @ 160), (6, 22), (0 ms), DFS, AUTO-BW, IR-CONCURRENT, NO-HT40PLUS, NO-320MHZ
(5530 - 5550 @ 160), (6, 22), (0 ms), DFS, AUTO-BW, IR-CONCURRENT, NO-HT40MINUS, NO-320MHZ
(5550 - 5570 @ 160), (6, 22), (0 ms), DFS, AUTO-BW, IR-CONCURRENT, NO-HT40PLUS, NO-320MHZ
(5570 - 5590 @ 160), (6, 22), (0 ms), DFS, AUTO-BW, IR-CONCURRENT, NO-HT40MINUS, NO-320MHZ
(5590 - 5610 @ 160), (6, 22), (0 ms), DFS, AUTO-BW, IR-CONCURRENT, NO-HT40PLUS, NO-320MHZ
(5610 - 5630 @ 160), (6, 22), (0 ms), DFS, AUTO-BW, IR-CONCURRENT, NO-HT40MINUS, NO-320MHZ
(5630 - 5650 @ 160), (6, 22), (0 ms), DFS, AUTO-BW, IR-CONCURRENT, NO-HT40PLUS, NO-320MHZ
(5650 - 5670 @ 80), (6, 22), (0 ms), DFS, AUTO-BW, IR-CONCURRENT, NO-HT40MINUS, NO-160MHZ, NO-320MHZ
(5670 - 5690 @ 80), (6, 22), (0 ms), DFS, AUTO-BW, IR-CONCURRENT, NO-HT40PLUS, NO-160MHZ, NO-320MHZ
(5690 - 5710 @ 80), (6, 22), (0 ms), DFS, AUTO-BW, IR-CONCURRENT, NO-HT40MINUS, NO-160MHZ, NO-320MHZ
(5710 - 5730 @ 80), (6, 22), (0 ms), DFS, AUTO-BW, IR-CONCURRENT, NO-HT40PLUS, NO-160MHZ, NO-320MHZ
(5735 - 5755 @ 80), (6, 22), (N/A), AUTO-BW, NO-HT40MINUS, NO-160MHZ, NO-320MHZ
(5755 - 5775 @ 80), (6, 22), (N/A), AUTO-BW, NO-HT40PLUS, NO-160MHZ, NO-320MHZ
(5775 - 5795 @ 80), (6, 22), (N/A), AUTO-BW, NO-HT40MINUS, NO-160MHZ, NO-320MHZ
(5795 - 5815 @ 80), (6, 22), (N/A), AUTO-BW, NO-HT40PLUS, NO-160MHZ, NO-320MHZ
(5815 - 5835 @ 40), (6, 22), (N/A), AUTO-BW, NO-HT40MINUS, NO-80MHZ, NO-160MHZ, NO-320MHZ
(5945 - 7065 @ 160), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-320MHZ, PASSIVE-SCAN
(7065 - 7105 @ 40), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-80MHZ, NO-160MHZ, NO-320MHZ, PASSIVE-SCAN
(7105 - 7125 @ 20), (6, 22), (N/A), NO-OUTDOOR, AUTO-BW, IR-CONCURRENT, NO-HT40MINUS, NO-HT40PLUS, NO-80MHZ, NO-160MHZ, NO-320MHZ, PASSIVE-SCAN
Interface wlp0s20f3
ifindex 5
wdev 0x1
addr ****
ssid ****
type managed
wiphy 0
channel 157 (5785 MHz), width: 20 MHz (no HT), center1: 5785 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
*-network:0
description: Wireless interface
product: Alder Lake-S PCH CNVi WiFi
vendor: Intel Corporation
physical id: 14.3
bus info: pci@0000:00:14.3
logical name: wlp0s20f3
version: 11
serial: ****
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=iwlwifi driverversion=6.17.0-19-generic firmware=89.1a492d28.0 so-a0-gf-a0-89.uc ip=10.0.0.188 latency=0 link=yes multicast=yes wireless=IEEE 802.11
resources: iomemory:400-3ff irq:18 memory:4012114000-4012117fff
*-network
description: Ethernet interface
product: RTL8125 2.5GbE Controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:03:00.0
logical name: enp3s0
version: 05
serial: ****
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=6.17.0-19-generic firmware=rtl8125b-2_0.0.2 07/13/20 latency=0 link=no multicast=yes port=twisted pair
resources: irq:17 ioport:3000(size=256) memory:72200000-7220ffff memory:72210000-72213fff
*-network:1
description: Ethernet interface
product: Ethernet Connection (17) I219-V
vendor: Intel Corporation
physical id: 1f.6
bus info: pci@0000:00:1f.6
logical name: enp0s31f6
version: 11
serial: ****
capacity: 1Gbit/s
width: 32 bits
clock: 33MHz
capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=6.17.0-19-generic firmware=2.3-4 latency=0 link=no multicast=yes port=twisted pair
resources: irq:134 memory:72400000-7241ffff
*-network
description: Ethernet interface
physical id: 5
bus info: usb@1:5.2
logical name: enxb04f13dc10d0
serial: ****
capacity: 1Gbit/s
capabilities: ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8152 driverversion=v1.12.13 duplex=half firmware=rtl8156b-2 v3 10/20/23 link=no multicast=yes port=MII
How can I fix this issue? I don’t want to revert to kernel 6.11 since the latest nvidia driver doesn’t seem to work there.
Here’s my full system info:
Operating System: KDE neon User Edition
KDE Plasma Version: 6.6.3
KDE Frameworks Version: 6.24.0
Qt Version: 6.10.2
Kernel Version: 6.17.0-19-generic (64-bit)
Graphics Platform: Wayland
Processors: 20 × 13th Gen Intel® Core™ i5-13600K
Memory: 32 GiB of RAM (31.1 GiB usable)
Graphics Processor: llvmpipe
Manufacturer: ASRock
Product Name: Z690M-ITX/ax