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causasui

Member

Registered: 2013-04-04

Posts: 65

[SOLVED] Troubleshooting TP-Link TL-WDN3800 wireless NIC

I recently installed a new wireless NIC, a TP-LINK TL-WDN3800 in a PCI-E slot. I see it listed in 'lspci -k' with support from the ath9k kernel module:

04:00.0 Network controller: Qualcomm Atheros AR93xx Wireless Network Adapter (rev 01)
        Subsystem: Qualcomm Atheros Device 3116
        Kernel driver in use: ath9k
        Kernel modules: ath9k

'ip link' has it as wlan0 but it is always in the 'DOWN' state:

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default 
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: wlan0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN mode DORMANT group default qlen 1000
    link/ether e8:de:27:19:25:39 brd ff:ff:ff:ff:ff:ff
3: eth0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel state DOWN mode DEFAULT group default qlen 1000
    link/ether 00:00:e8:5f:79:e7 brd ff:ff:ff:ff:ff:ff
8: wlan1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DORMANT group default qlen 1000
    link/ether 00:0e:2e:da:ba:a8 brd ff:ff:ff:ff:ff:ff

# ip set wlan0 up # has no obvious effects.

$ dmesg | grep -i ath9k # returns null.

Anything else I can try?

Last edited by causasui (2015-01-03 10:59:36)

causasui

Member

Registered: 2013-04-04

Posts: 65

Re: [SOLVED] Troubleshooting TP-Link TL-WDN3800 wireless NIC

It seems I was a victim of this bug: https://bugs.archlinux.org/task/38988

Marking solved.