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#1 2016-11-17 23:59:46

squirel
Member
Registered: 2016-11-11
Posts: 8

Broadcom Wireless very slow and unstable.

My wireless internet has  been very slow and unstable after installing arch. I've been trying to google the problem but to no avail. It's too slow to load speedtest.net and it keeps dropping. It works fine with ethernet though.

I'm using a BMC4313 broadcom chip with the brcmsmac driver


ifconfig 


enp1s0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        ether 08:9e:01:25:28:0d  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1  (Local Loopback)
        RX packets 15  bytes 1201 (1.1 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 15  bytes 1201 (1.1 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

wlp2s0b1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.1.124  netmask 255.255.255.0  broadcast 192.168.1.255
        inet6 fe80::a3e:8eff:fe88:f85  prefixlen 64  scopeid 0x20<link>
        ether 08:3e:8e:88:0f:85  txqueuelen 0  (Ethernet)
        RX packets 6481  bytes 4741255 (4.5 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 7178  bytes 1567326 (1.4 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
iwconfig


enp1s0    no wireless extensions.

wlp2s0b1  IEEE 802.11  ESSID:"Wifi"  
          Mode:Managed  Frequency:2.412 GHz  Access Point: 58:6D:8F:64:BE:69   
          Bit Rate=1 Mb/s   Tx-Power=19 dBm   
          Retry short limit:7   RTS thr:off   Fragment thr:off
          Power Management:off
          Link Quality=48/70  Signal level=-62 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:2384  Invalid misc:1034   Missed beacon:0

lo        no wireless extensions.
drill www.archlinux.org @208.67.222.222


;; ->>HEADER<<- opcode: QUERY, rcode: NOERROR, id: 55453
;; flags: qr rd ra ; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 0 
;; QUESTION SECTION:
;; www.archlinux.org.	IN	A

;; ANSWER SECTION:
www.archlinux.org.	1860	IN	CNAME	gudrun.archlinux.org.
gudrun.archlinux.org.	84660	IN	A	66.211.214.131

;; AUTHORITY SECTION:

;; ADDITIONAL SECTION:

;; Query time: 743 msec
;; SERVER: 208.67.222.222
;; WHEN: Thu Nov 17 15:48:04 2016
;; MSG SIZE  rcvd: 72
lspci -k

00:00.0 Host bridge: Intel Corporation Atom Processor D2xxx/N2xxx DRAM Controller (rev 04)
	Subsystem: Acer Incorporated [ALI] Device 0624
00:02.0 VGA compatible controller: Intel Corporation Atom Processor D2xxx/N2xxx Integrated Graphics Controller (rev 0b)
	Subsystem: Acer Incorporated [ALI] Device 0624
	Kernel driver in use: gma500
	Kernel modules: gma500_gfx
00:1b.0 Audio device: Intel Corporation NM10/ICH7 Family High Definition Audio Controller (rev 02)
	Subsystem: Acer Incorporated [ALI] Device 0624
	Kernel driver in use: snd_hda_intel
	Kernel modules: snd_hda_intel
00:1c.0 PCI bridge: Intel Corporation NM10/ICH7 Family PCI Express Port 1 (rev 02)
	Kernel driver in use: pcieport
	Kernel modules: shpchp
00:1c.1 PCI bridge: Intel Corporation NM10/ICH7 Family PCI Express Port 2 (rev 02)
	Kernel driver in use: pcieport
	Kernel modules: shpchp
00:1c.2 PCI bridge: Intel Corporation NM10/ICH7 Family PCI Express Port 3 (rev 02)
	Kernel driver in use: pcieport
	Kernel modules: shpchp
00:1d.0 USB controller: Intel Corporation NM10/ICH7 Family USB UHCI Controller #1 (rev 02)
	Subsystem: Acer Incorporated [ALI] Device 0624
	Kernel driver in use: uhci_hcd
	Kernel modules: uhci_hcd
00:1d.1 USB controller: Intel Corporation NM10/ICH7 Family USB UHCI Controller #2 (rev 02)
	Subsystem: Acer Incorporated [ALI] Device 0624
	Kernel driver in use: uhci_hcd
	Kernel modules: uhci_hcd
00:1d.2 USB controller: Intel Corporation NM10/ICH7 Family USB UHCI Controller #3 (rev 02)
	Subsystem: Acer Incorporated [ALI] Device 0624
	Kernel driver in use: uhci_hcd
	Kernel modules: uhci_hcd
00:1d.3 USB controller: Intel Corporation NM10/ICH7 Family USB UHCI Controller #4 (rev 02)
	Subsystem: Acer Incorporated [ALI] Device 0624
	Kernel driver in use: uhci_hcd
	Kernel modules: uhci_hcd
00:1d.7 USB controller: Intel Corporation NM10/ICH7 Family USB2 EHCI Controller (rev 02)
	Subsystem: Acer Incorporated [ALI] Device 0624
	Kernel driver in use: ehci-pci
	Kernel modules: ehci_pci
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev e2)
00:1f.0 ISA bridge: Intel Corporation NM10 Family LPC Controller (rev 02)
	Subsystem: Acer Incorporated [ALI] Device 0624
	Kernel driver in use: lpc_ich
	Kernel modules: lpc_ich
00:1f.2 SATA controller: Intel Corporation NM10/ICH7 Family SATA Controller [AHCI mode] (rev 02)
	Subsystem: Acer Incorporated [ALI] Device 0624
	Kernel driver in use: ahci
	Kernel modules: ahci
00:1f.3 SMBus: Intel Corporation NM10/ICH7 Family SMBus Controller (rev 02)
	Subsystem: Acer Incorporated [ALI] Device 0624
	Kernel driver in use: i801_smbus
	Kernel modules: i2c_i801
01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller (rev 05)
	Subsystem: Acer Incorporated [ALI] Device 0624
	Kernel driver in use: r8169
	Kernel modules: r8169
02:00.0 Network controller: Broadcom Corporation BCM4313 802.11bgn Wireless Network Adapter (rev 01)
	Subsystem: Foxconn International, Inc. Device e042
	Kernel driver in use: bcma-pci-bridge
	Kernel modules: bcma
03:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5209 PCI Express Card Reader (rev 01)
	Subsystem: Acer Incorporated [ALI] Device 0624
	Kernel driver in use: rtsx_pci
	Kernel modules: rtsx_pci
ping www.google.com


--- www.google.com ping statistics ---
31 packets transmitted, 21 received, 32% packet loss, time 30337ms
rtt min/avg/max/mdev = 53.047/147.457/448.306/118.644 ms

Thanks!

Last edited by squirel (2016-11-18 03:13:21)

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#2 2016-11-18 14:10:43

posbios
Member
Registered: 2016-11-18
Posts: 2

Re: Broadcom Wireless very slow and unstable.

try with this

# iw reg set BO

# iwconfig wlp2s0b1 txpower 30

Set higher or lower mtu and check:

# ip link set wlp2s0b1 mtu 2048

OR

# ip link set wlp2s0b1 mtu 512

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#3 2016-11-18 20:02:09

squirel
Member
Registered: 2016-11-11
Posts: 8

Re: Broadcom Wireless very slow and unstable.

Thanks for the reply!

I get this error though :(


iwconfig wlp2s0b1 txpower 30


Error for wireless request "Set Tx Power" (8B26) :
    SET failed on device wlp2s0b1 ; Operation not permitted.

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