Hello, It’s my second week in linux and so far I didn’t find many problems and usually when I find a problem there are plenty of resources to fix it. But, this wifi problem I can’t seem to fix it. My connection is extremely slow and unstable. I don’t know which information is needed for you to help so please guide me to what information I should provide.
OS: Manjaro XFCE
Wifi Card: Atheros QCA9565 / AR9565 Wireless Adaptor
Kernel: 5.4 LTS
You should at least provide info of:
vendor:device ID’s of your WiFi adapter.Connection goes down in speed to something like 60kb which is unusable. When I restart the system it goes back to 20mb but after 10 mins it goes down again to 600kb
Using 2.4GHZ
How to provide that?
As I said I’m new to linux but after looking through the arch wiki I found that its: ath9k
Then as usual please see:
inxi ) Results:System:
Kernel: 5.4.80-2-MANJARO x86_64 bits: 64 compiler: gcc v: 10.2.0
parameters: BOOT_IMAGE=/boot/vmlinuz-5.4-x86_64
root=UUID=68a7b56a-51ff-488b-b590-03703f2a654a rw quiet apparmor=1
security=apparmor udev.log_priority=3
Desktop: Xfce 4.14.3 tk: Gtk 3.24.23 info: xfce4-panel, plank wm: xfwm4
dm: LightDM 1.30.0 Distro: Manjaro Linux
Machine:
Type: Laptop System: TOSHIBA product: Satellite C50-A393 v: PSCG8V-03K00FAR
serial: <filter>
Mobo: Intel model: PT10F v: Type2 - Board Version serial: <filter>
UEFI: Insyde v: 1.40 date: 04/22/2014
Battery:
ID-1: BAT0 charge: 40.7 Wh condition: 40.7/48.4 Wh (84%) volts: 12.3/10.8
model: TKBSS NS2P3SZMC4WR type: Li-ion serial: N/A status: Full
CPU:
Info: Dual Core model: Intel Core i3-3110M bits: 64 type: MT MCP
arch: Ivy Bridge family: 6 model-id: 3A (58) stepping: 9 microcode: 21
L2 cache: 3072 KiB
flags: avx lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 19167
Speed: 1198 MHz min/max: 1200/2400 MHz Core speeds (MHz): 1: 1197 2: 1203
3: 1197 4: 1196
Vulnerabilities: Type: itlb_multihit status: KVM: Split huge pages
Type: l1tf
mitigation: PTE Inversion; VMX: conditional cache flushes, SMT vulnerable
Type: mds mitigation: Clear CPU buffers; SMT vulnerable
Type: meltdown mitigation: PTI
Type: spec_store_bypass
mitigation: Speculative Store Bypass disabled via prctl and seccomp
Type: spectre_v1
mitigation: usercopy/swapgs barriers and __user pointer sanitization
Type: spectre_v2 mitigation: Full generic retpoline, IBPB: conditional,
IBRS_FW, STIBP: conditional, RSB filling
Type: srbds status: Not affected
Type: tsx_async_abort status: Not affected
Graphics:
Device-1: Intel 3rd Gen Core processor Graphics vendor: Toshiba driver: i915
v: kernel bus ID: 00:02.0 chip ID: 8086:0166
Display: x11 server: X.Org 1.20.10 driver: intel display ID: :0.0 screens: 1
Screen-1: 0 s-res: 1366x768 s-dpi: 96 s-size: 361x203mm (14.2x8.0")
s-diag: 414mm (16.3")
Monitor-1: LVDS1 res: 1366x768 hz: 60 dpi: 101 size: 344x194mm (13.5x7.6")
diag: 395mm (15.5")
OpenGL: renderer: Mesa DRI Intel HD Graphics 4000 (IVB GT2)
v: 4.2 Mesa 20.2.3 compat-v: 3.0 direct render: Yes
Audio:
Device-1: Intel 7 Series/C216 Family High Definition Audio vendor: Toshiba
driver: snd_hda_intel v: kernel bus ID: 00:1b.0 chip ID: 8086:1e20
Sound Server: ALSA v: k5.4.80-2-MANJARO
Network:
Device-1: Qualcomm Atheros QCA9565 / AR9565 Wireless Network Adapter
vendor: Lite-On driver: ath9k v: kernel port: 2040 bus ID: 02:00.0
chip ID: 168c:0036
IF: wlp2s0 state: up mac: <filter>
Drives:
Local Storage: total: 689.33 GiB used: 25.04 GiB (3.6%)
SMART Message: Required tool smartctl not installed. Check --recommends
ID-1: /dev/sda vendor: Kingston model: SA400S37240G size: 223.57 GiB
block size: physical: 512 B logical: 512 B speed: 6.0 Gb/s serial: <filter>
rev: 1102 scheme: GPT
ID-2: /dev/sdb vendor: Toshiba model: MQ01ABF050 size: 465.76 GiB
block size: physical: 512 B logical: 512 B speed: 3.0 Gb/s
rotation: 5400 rpm serial: <filter> rev: 3M scheme: MBR
Partition:
ID-1: / raw size: 80.91 GiB size: 79.13 GiB (97.81%) used: 25.01 GiB (31.6%)
fs: ext4 dev: /dev/sda5
Swap:
Alert: No Swap data was found.
Sensors:
System Temperatures: cpu: 42.0 C mobo: N/A
Fan Speeds (RPM): N/A
Info:
Processes: 217 Uptime: 6m Memory: 7.65 GiB used: 1.33 GiB (17.3%)
Init: systemd v: 246 Compilers: gcc: 10.2.0 Packages: pacman: 1195 lib: 349
flatpak: 0 Shell: Zsh v: 5.8 running in: xfce4-terminal inxi: 3.1.08
What were you doing while you got that info and ofcourse where did you gain this info?
It happens randomly during browsing. Currently after restarting the OS its back to normal but over time it goes back down.
Also to mention I just added this line according to the arch wiki inside /etc/modprob.d/ath9k.conf: options ath9k ps_enable=0.
It’s been stable so far I guess it was something to do with Power saving but I’m going to monitor over time again.
And for the source of information its usually using SpeedTest or Fast to measure my internet speed
Speed tests over the internet can vary for various reasons that can not be controlled by your side, so you should never mention those results with this kind of issues.
Only speeds between your computer and your modem can be controlled.
PS:
I’ve edited the reply it should look better now.
Can you please tell me what do you mean by between your computer and modem? Do you mean using the ping command inside the terminal?
P.S: Speed is down again to 100KB/s but since its not a right measure I’m going to wait for the right method
What i mean by that is the hardware’s connection speed.
Ping is something different, it’s like a “reaction time” of your connection not the speed it operates at.
Your connection speed can be light-speed, while your ping can be slower as a turtle if the computer on the other side of your connection is slow to reply to the ping request…
(Some systems don’t reply at all even)
Oh, now the difference is more clear.
But since browser speeds are not a right way to measure, How can I correctly measure the speed to monitor the changes and post it here for you to see?
For that you would need to ask the driver at what speed it operates, i don’t know how to request that for a WiFi driver because i use an Ethernet connection (wired).
I can see mine with this command: networkctl --no-pager status -a
It could work for you also, or it may not…
Maybe others more familiar with WiFi stuff know a different way 
I just got a suspicious message that might be the problem, I ran your command and got this:
WARNING: systemd-networkd is not running, output will be incomplete.
Failed to query link bit rates: Unit dbus-org.freedesktop.network1.service not found.
Failed to query link bit rates: Unit dbus-org.freedesktop.network1.service not found.
Failed to query link DHCP leases: Unit dbus-org.freedesktop.network1.service not found.
● 1: lo
Link File: /usr/lib/systemd/network/99-default.link
Network File: n/a
Type: loopback
State: n/a (unmanaged)
MTU: 65536
QDisc: noqueue
IPv6 Address Generation Mode: eui64
Queue Length (Tx/Rx): 1/1
Address: 127.0.0.1
::1
So first of all what is systemd-networkd? and should I enable it?
It’s a service that is not enabled by default, but should not interfere with normal operations (only a very specific issue could)
You could try to start it before you try that command, and stop it afterwards…
If you like to use that command a lot, or for whatever reason like it, you could enable it so it starts at boot.
I don’t use NetworkManager for my network setup that’s why i have it enabled…
The slow wifi is unbearable I had to install windows yesterday as dual boot. I was wondering if the problem can be fixed or not.
That’s still unclear because we have not pin-pointed it’s cause yet…
It could be driver, it could be your Wifi settings in your router or even your location in respect to your modem…
Is it same under that OS?
It’s probably the driver because I’'m right beside the router and for the router settings they are defaulted by the ISP.
When I switched to windows my wifi was fast again and very stable so its a driver problem
Are you using 5GHz as WiFi?
Because some drivers have problems with band-usage on 5GHz, so in that case you can try to force a lower channel in your router’s WiFi settings wrt 5GHz channel.
(eg. Channel 40)
That info i picked-up from another thread on these forums… (see #wifi)
No, Im using 2.4GHz, my router doesnt support 5GHz
Also to mention, I tried a D-link wifi usb and its way more stable than the built it Atheros wifi so again this confirms that its a driver problem but I’m new to linux and I dont know how drivers are managed manually.
I can’t keep using my D-link usb as I dont have a spare port So I need my built in wifi.
Take a look at these, these users seem to have had the same issue: