Possible Duplicate:
12.10 x64 - RTL8188CE - Intermittent/Slow Internet Connection
I'm running Ubuntu 12.10 and Windows 8 on my laptop. In Windows, using wireless connection, average speed and ping to google.com is 60kBps and less than 25 ms, but in Ubuntu, top internet speed only reach 10 kBps and ping reach 12000 ms, that's happen not only on browser but on entire system like gwibber or apt-get. How do I make it as fast as on Windows?
Note:
My WiFi hotspot is a PC running latest version of connectify.
Update:
Everytime wifi connected to connectify hotspot, I always get this message:
Network service discovery disabled.
Your current network has a .local domain, which is not recommended and incompatible with the Avahi network service discovery. The service has been disabled.
Update:
sudo lshw -c network give me this:
*-network
description: Wireless interface
product: RTL8188CE 802.11b/g/n WiFi Adapter
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:02:00.0
logical name: wlan0
version: 01
serial: 74:2f:68:f1:b3:1e
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=rtl8192ce driverversion=3.5.0-21-generic firmware=N/A ip=192.168.251.102 latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn
resources: irq:16 ioport:2000(size=256) memory:f0500000-f0503fff
*-network
description: Ethernet interface
product: RTL8111/8168B PCI Express Gigabit Ethernet controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:04:00.0
logical name: eth0
version: 06
serial: c8:9c:dc:10:fa:47
size: 10Mbit/s
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl_nic/rtl8168e-2.fw latency=0 link=no multicast=yes port=MII speed=10Mbit/s
resources: irq:41 ioport:3000(size=256) memory:f0900000-f0900fff memory:f0a04000-f0a07fff
and lsmod give me this:
Module Size Used by
snd_hda_codec_hdmi 31423 1
snd_hda_codec_realtek 63493 1
joydev 17161 0
snd_hda_intel 32515 3
parport_pc 31968 0
arc4 12473 2
snd_hda_codec 111547 3 snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_intel
snd_hwdep 13272 1 snd_hda_codec
snd_pcm 80163 3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec
snd_seq_midi 13132 0
snd_rawmidi 25382 1 snd_seq_midi
i915 457181 3
rtl8192ce 52841 0
rtl8192c_common 47075 1 rtl8192ce
coretemp 13168 0
ppdev 12817 0
rtlwifi 64137 1 rtl8192ce
btusb 17986 0
uvcvideo 71277 0
psmouse 84843 0
snd_seq_midi_event 14475 1 snd_seq_midi
snd_seq 51255 2 snd_seq_midi,snd_seq_midi_event
drm_kms_helper 47303 1 i915
snd_timer 24411 2 snd_pcm,snd_seq
snd_seq_device 14137 3 snd_seq_midi,snd_rawmidi,snd_seq
videobuf2_core 32070 1 uvcvideo
drm 238768 4 i915,drm_kms_helper
videodev 95841 2 uvcvideo,videobuf2_core
bnep 17707 2
rfcomm 37276 12
mac80211 461161 3 rtl8192ce,rtl8192c_common,rtlwifi
kvm_intel 126745 0
kvm 357806 1 kvm_intel
bluetooth 183228 22 btusb,bnep,rfcomm
i2c_algo_bit 13197 1 i915
cfg80211 175375 2 rtlwifi,mac80211
snd 61991 16 snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
sparse_keymap 13658 0
video 18847 1 i915
mac_hid 13037 0
videobuf2_vmalloc 12756 1 uvcvideo
mei 35796 0
videobuf2_memops 13184 1 videobuf2_vmalloc
wmi 18590 0
soundcore 14599 1 snd
microcode 18209 0
serio_raw 13031 0
snd_page_alloc 14036 2 snd_hda_intel,snd_pcm
lpc_ich 16925 0
binfmt_misc 17260 1
lp 13299 0
parport 40753 3 parport_pc,ppdev,lp
hid_generic 12445 0
usbhid 41702 0
hid 82142 2 hid_generic,usbhid
r8169 55976 0
