Thank You very very much. I was struggling for two days and then search resulted in your post!!! it works! thanks a lot once again
Thank You very very much. I was struggling for two days and then search resulted in your post!!! it works! thanks a lot once again
I cannot thank you enough for this, I nearly reinstalled my OS until I saw this.
I am jumping for joy!
I am new to Linux. Installed Ubuntu 12.04 on a Dell Latitude D430. After installing, I was suggested to wire connect the machine to get Internet, which I did, updated the system, and it works wired. Wireless is what's killing me.
In systems settings, under additional drivers, the driver for the machine is there and active.
I tried 2 two commands:
sudo apt-get remove --purge bcmwl-kernel-source sudo apt-get install linux-firmware-nonfree
Got the same terminal response as Josh Rabbit, rebooted, I still don't get signal at the hot spot.
One question though, Do I soppose to get a message saying "Networks Available"? like in Windows?
New to Linux, installed Ubuntu 12.04 on a Latitude D430. Wired connection works, that is how I updated the system. wireless is whats killing me. the driver is there, in additional drivers and active. I tried this 2 commands, got the same results as Josh Rabbit, rebooted, still don't have signal at a hot spot. It should detect signal as in windows correct? What do I do next. Heeelp!
"Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, B.Sc., M.Sc., M.A., Ph.D., Sc.D.
@chili555
thank you.
@chili555
Thanks.
Thank you Chili you are the $h!t.. this works great in 12.10 fixed my wifi great!!
I added this to it and my internet is flying now I am getting 30Mbs/6Mbs over wifi:
Disables Ipv6:
Code:sudo gedit /etc/modprobe.d/bad_listThis adjusts TCP window size:Code:alias net-pf-10 off
If you choose a windows packet size that is too big, you will notice slower broadband performance (524288 works for me). If you notice a slow down, then reduce your window size.Code:sudo gedit /etc/sysctl.conf
The largest size you can use is 65536, however these are the three settings that seem to work best:
524288
262144
131072
Which are all multiples of 1024 (or 1K).
Now add the following to the end of the file:
net.core.rmem_default = 524288After adding these line you do not need to reboot, instead just reset the file by issuing this command:
net.core.rmem_max = 524288
net.core.wmem_default = 524288
net.core.wmem_max = 524288
net.ipv4.tcp_wmem = 4096 87380 524288
net.ipv4.tcp_rmem = 4096 87380 524288
net.ipv4.tcp_mem = 524288 524288 524288
net.ipv4.tcp_rfc1337 = 1
net.ipv4.ip_no_pmtu_disc = 0
net.ipv4.tcp_sack = 1
net.ipv4.tcp_fack = 1
net.ipv4.tcp_window_scaling = 1
net.ipv4.tcp_timestamps = 1
net.ipv4.tcp_ecn = 0
net.ipv4.route.flush = 1
Now save
sudo sysctl -pAfter completing this, you should notice improved web surfing speed. If not, remember to go back and adjust your TCP window size and try again.
Everything in modprobe.d needs to be a conf file, so this will work better as:sudo gedit /etc/modprobe.d/bad_listThanks for your kind (??) comments.Code:sudo gedit /etc/modprobe.d/bad_list.conf
"Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, B.Sc., M.Sc., M.A., Ph.D., Sc.D.
i also have problems but on a inspirion 1545 and my rfkill list says
user@user-Inspiron-1545:~$ rfkill list all
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
1: dell-wifi: Wireless LAN
Soft blocked: yes
Hard blocked: yes
what do i do
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