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#1 2018-09-04 17:27:50

blumper
Member
Registered: 2018-09-04
Posts: 2

Slow WiFi in Arch but Fast in Windows

I have a dual boot computer and on Windows 10 OS I get download speeds of around 30Mbps. On Arch it's 5Mbps.

This is my distribution:

 x86_64 Linux 4.18.5-arch1-1-ARCH

Driver:

24:00.0 Network controller: Qualcomm Atheros AR93xx Wireless Network Adapter (rev 01)
        Subsystem: Qualcomm Atheros AR93xx Wireless Network Adapter
        Kernel driver in use: ath9k
        Kernel modules: ath9k

ip-link output:

$ sudo ip link

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: enp33s0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
    link/ether 30:9c:23:04:f4:6c brd ff:ff:ff:ff:ff:ff
3: wlp36s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP mode DORMANT group default qlen 1000
    link/ether 50:3e:aa:51:54:48 brd ff:ff:ff:ff:ff:ff

Is this my problem, please forgive my ignorance

$ dmesg | grep firmware

[    3.087847] platform regulatory.0: Direct firmware load for regulatory.db failed with error -2

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#2 2018-09-04 17:46:35

loqs
Member
Registered: 2014-03-06
Posts: 13,264

Re: Slow WiFi in Arch but Fast in Windows

blumper wrote:

Is this my problem, please forgive my ignorance

$ dmesg | grep firmware

[    3.087847] platform regulatory.0: Direct firmware load for regulatory.db failed with error -2

That would indicate wireless-regdb is not present on the system. Wireless_network_configuration#Respecting_the_regulatory_domain

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#3 2018-09-04 18:07:02

brebs
Member
Registered: 2007-04-03
Posts: 3,742

Re: Slow WiFi in Arch but Fast in Windows

See the current threads mentioning Explicit Congestion Notification (ECN).

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#4 2018-09-05 16:33:21

blumper
Member
Registered: 2018-09-04
Posts: 2

Re: Slow WiFi in Arch but Fast in Windows

loqs wrote:
blumper wrote:

Is this my problem, please forgive my ignorance

$ dmesg | grep firmware

[    3.087847] platform regulatory.0: Direct firmware load for regulatory.db failed with error -2

That would indicate wireless-regdb is not present on the system. Wireless_network_configuration#Respecting_the_regulatory_domain


Thank you! This solved my problem. I had to set the appropriate region.

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