Thread: Ubuntu 11.04 Internet Speed 30 Kb/s instead of 300 Kb/s

hello everyone.

first of all, thank help.

installed ubuntu 11.04 on laptop windows vista. working fine, internet speed; download speed, slow. example, in windows vista download @ 300 kb/s, (ubuntu 11.04) downloading @ 30 - 50 kb/s.

here information might find useful:

lspci | grep wir
05:00.0 network controller: atheros communications inc. ar928x wireless network adapter (pci-express) (rev 01)

sudo lshw -c network
*-network
description: ethernet interface
product: rtl8101e/rtl8102e pci express fast ethernet controller
vendor: realtek semiconductor co., ltd.
physical id: 0
bus info: pci@0000:04:00.0
logical name: eth0
version: 02
serial: 00:1e:33:96:ee:27
size: 10mbit/s
capacity: 100mbit/s
width: 64 bits
clock: 33mhz
capabilities: pm msi pciexpress msix vpd bus_master cap_list rom ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3lk-napi duplex=half latency=0 link=no multicast=yes port=mii speed=10mbit/s
resources: irq:45 ioport:3000(size=256) memory:d1010000-d1010fff memory:d1000000-d100ffff memory:d1020000-d103ffff
*-network
description: wireless interface
product: ar928x wireless network adapter (pci-express)
vendor: atheros communications inc.
physical id: 0
bus info: pci@0000:05:00.0
logical name: wlan0
version: 01
serial: 00:21:63:f6:5c:0f
width: 64 bits
clock: 33mhz
capabilities: pm msi pciexpress msix bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=ath9k driverversion=2.6.38-8-generic firmware=n/a ip=192.168.40.100 latency=0 link=yes multicast=yes wireless=ieee 802.11bgn
resources: irq:18 memory:d3200000-d320ffff

ifconfig
eth0 link encap:ethernet hwaddr 00:1e:33:96:ee:27
broadcast multicast mtu:1500 metric:1
rx packets:0 errors:0 dropped:0 overruns:0 frame:0
tx packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
rx bytes:0 (0.0 b) tx bytes:0 (0.0 b)
interrupt:45 base address:0x4000

lo link encap:local loopback
inet addr:127.0.0.1 mask:255.0.0.0
inet6 addr: ::1/128 scope:host
loopback running mtu:16436 metric:1
rx packets:20 errors:0 dropped:0 overruns:0 frame:0
tx packets:20 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
rx bytes:1200 (1.2 kb) tx bytes:1200 (1.2 kb)

wlan0 link encap:ethernet hwaddr 00:21:63:f6:5c:0f
inet addr:192.168.40.100 bcast:192.168.40.255 mask:255.255.255.0
inet6 addr: fe80::221:63ff:fef6:5c0f/64 scope:link
broadcast running multicast mtu:1500 metric:1
rx packets:13995 errors:0 dropped:0 overruns:0 frame:0
tx packets:13475 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
rx bytes:10017929 (10.0 mb) tx bytes:2629973 (2.6 mb)

iwconfig
lo no wireless extensions.

eth0 no wireless extensions.

wlan0 ieee 802.11bgn essid:"casa-wifi"
mode:managed frequency:2.437 ghz access point: 00:1d:0f:eb:b54
bit rate=48 mb/s tx-power=16 dbm
retry long limit:7 rts thrff fragment thrff
power managementff
link quality=39/70 signal level=-71 dbm
rx invalid nwid:0 rx invalid crypt:0 rx invalid frag:0
tx excessive retries:1 invalid misc:82 missed beacon:0

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