Sunday, 8 February 2015

Atheros AR93xx: Wifi issues on 14.04 topic






I apologize if this has been asked before and I did find some related posts but none of them got me a solution.
So I built a new desktop and my wifi on 14.04 seems to be really inconsistent (keeps getting disconnected) and slow. I'm dual booting my machine and I consistently get 1/8th of the speed I get on windows.

My network adapter is TP-LINK TL-WDN4800 Dual Band Wireless N900 (Amazon link)

The machine detects the hardware (bolded in last line):


Code:



> lspci -nn

00:00.0 Host bridge [0600]: Intel Corporation 4th Gen Core Processor DRAM Controller [8086:0c00] (rev 06)
00:01.0 PCI bridge [0604]: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor PCI Express x16 Controller [8086:0c01] (rev 06)
00:02.0 VGA compatible controller [0300]: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller [8086:0412] (rev 06)
00:03.0 Audio device [0403]: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor HD Audio Controller [8086:0c0c] (rev 06)
00:14.0 USB controller [0c03]: Intel Corporation Device [8086:8cb1]
00:16.0 Communication controller [0780]: Intel Corporation Device [8086:8cba]
00:19.0 Ethernet controller [0200]: Intel Corporation Ethernet Connection (2) I218-V [8086:15a1]
00:1a.0 USB controller [0c03]: Intel Corporation Device [8086:8cad]
00:1b.0 Audio device [0403]: Intel Corporation Device [8086:8ca0]
00:1c.0 PCI bridge [0604]: Intel Corporation Device [8086:8c90] (rev d0)
00:1c.3 PCI bridge [0604]: Intel Corporation 82801 PCI Bridge [8086:244e] (rev d0)
00:1c.7 PCI bridge [0604]: Intel Corporation Device [8086:8c9e] (rev d0)
00:1d.0 USB controller [0c03]: Intel Corporation Device [8086:8ca6]
00:1f.0 ISA bridge [0601]: Intel Corporation Device [8086:8cc4]
00:1f.2 SATA controller [0106]: Intel Corporation Device [8086:8c82]
00:1f.3 SMBus [0c05]: Intel Corporation Device [8086:8ca2]
03:00.0 PCI bridge [0604]: ASMedia Technology Inc. ASM1083/1085 PCIe to PCI Bridge [1b21:1080] (rev 04)
05:00.0 Network controller [0280]: Qualcomm Atheros AR93xx Wireless Network Adapter [168c:0030] (rev 01)



Any help much appreciated. Thanks in advance.






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