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I literally just installed ubuntu and it seems to be working great except the network is deadly slow.

I'm running a TL-WN951N wireless card which can download at about 600-700 KB/s in windows but in Ubuntu the max speed it seems to get is around 5KB/s. I guess I should note that my WAP is only wireless-G but like I said, I can get much better speeds in Windows.

I'm testing the speeds by downloading files from here: http://mirror.internode.on.net/pub/test/

Anyone have any idea? I saw some people recommend downloading drivers and compiling them myself but I'm really really new to all of this so would appreciate someone babying me through it so I don't brick my computer!

Here are the results of lspci -v:

04:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 02)
    Subsystem: Giga-byte Technology GA-EP45-DS5 Motherboard
    Flags: bus master, fast devsel, latency 0, IRQ 44
    I/O ports at c000 [size=256]
    Memory at e9110000 (64-bit, prefetchable) [size=4K]
    Memory at e9100000 (64-bit, prefetchable) [size=64K]
    [virtual] Expansion ROM at e9120000 [disabled] [size=64K]
    Capabilities: <access denied>
    Kernel driver in use: r8169
    Kernel modules: r8169

05:02.0 Network controller: Atheros Communications Inc. AR5008 Wireless Network Adapter (rev 01)
    Subsystem: Atheros Communications Inc. Device 3071
    Flags: bus master, 66MHz, medium devsel, latency 168, IRQ 18
    Memory at e9200000 (32-bit, non-prefetchable) [size=64K]
    Capabilities: <access denied>
    Kernel driver in use: ath9k
    Kernel modules: ath9k   
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If you're able, can you post the results pertinent to your wireless card from lspci -v (run via a terminal window)? This will help us know what drivers you currently are using. –  AvatarKava May 1 '11 at 3:08
    
@AvatarKava: no worries, done :) –  Sam May 1 '11 at 3:11
    
This question appears to be abandoned, if you are experiencing a similar issue please ask a new question with details pertaining to your problem. If you feel this question is not abandoned, please flag the question explaining that. :) –  jrg Feb 3 '12 at 0:55
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closed as too localized by Marco Ceppi Feb 3 '12 at 0:56

This question is unlikely to help any future visitors; it is only relevant to a small geographic area, a specific moment in time, or an extraordinarily narrow situation that is not generally applicable to the worldwide audience of the internet. For help making this question more broadly applicable, visit the help center.If this question can be reworded to fit the rules in the help center, please edit the question.

1 Answer

There is a known bug where the rtl-818x wifi card shows very weak signal, and weak signal = slow wireless. I've posted a FIX at bugs.launchpad.net, so maybe it could help you. That bug-fix was for the driver RTL8180, but yours is RTL8111/8168B. So, it you want to give it a try, download and execute the script to fix your network card driver:

wget -c "https://bugs.launchpad.net/ubuntu/+source/linux/+bug/275230/+attachment/1801830/+files/rtl8185-weak_signal_fix.sh" -O /tmp/rtl818x-weak_signal_fix.sh    
sh /tmp/rtl818x-weak_signal_fix.sh
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Warning: that scripts reboots the computer after it has completed. It is a better idea to ask the user for rebooting so (s)he has a change for saving files. –  Lekensteyn Jun 9 '11 at 8:15
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