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brandonhon
December 16th, 2008, 02:25 AM
I just installed Intrepid and noticed that my wireless signal is really poor. My antenna is within a foot of the accesspoint. I have an Asus P5W DH Deluxe with on-board wlan. Any suggestions? New driver maybe?

andreasis
December 16th, 2008, 02:42 AM
hi brandonhon,

please post what wireless card/driver you are using. You should be able to find that information in:

lspci
lsmod

brandonhon
December 17th, 2008, 04:01 AM
ok so i attached my lsmod and lspci because i don't see my wireless card

joebeasley
December 17th, 2008, 07:05 AM
I have the same issue. Only shows up to 10% with one bar, but my connection works fine. AP is 6 feet away behind a wall. This is a fresh 64bit Ibex install on an AMD with 2Gigs ram.

Please post if you find a solution.

7.10 showed a 80-98% connection.

brandonhon
December 19th, 2008, 01:45 AM
I have a feeling it is the default driver. I just don't know which one to change it to or try. I am also kind of a newbie at this.

brandonhon
December 19th, 2008, 07:45 PM
ok, so i just tried the livecd of mint based on Hardy and i am now getting full signal strength through my wifi. does anyone know if the driver for Hardy is a different version then the one for intrepid? if not how would i find out?

by the way it is the rtl8187 driver i am referring too.

almikul
December 20th, 2008, 07:36 AM
I have the same issue with Intrepid. Hardy indeed uses a different version of rtl8187. My router is 2-3 metres from the laptop, but the link strength is about ~20%. Hardy's rtl8187 (from 2.6.24-19) showed a more reasonable link strength of about 90%, but it had its own problems with keeping the connection up. Now, i am wondering whether the card really sees a poor signal or it just reports the signal strength incorrectly. Frankly, I did not notice any degradation in download speed compared to Vista.

Baldrick_NZ
December 20th, 2008, 09:54 AM
Thank goodness for this thread!

I was thinking my new wireless card was faulty!

I'm using an acer aspire 3000 lappy with a asus wl-107 network card (ralink) with intrepid and xp on dual boot.

I've found xp gets excellent coverage where as intrepid gets between 8-74% strength. To get 50-74% I need to be a max of 3m away from the access point, but at about 7m away i get 9-50%. Although, right now I'm about 7m away and it claims 70%.

I've noticed when it transfers traffic the signal drops by 20-30% as well.

The signal drops using xp too, but maybe by only 10%. I still get excellent signal when using xp @ 7m.

The wireless drops out regularly using intrepid (due to signal loss I guess), and seldom using xp.

Sounds like bad drivers in intrepid. any ideas for a simple fix guys? I too am a relative newbie to linux, and can work synaptic fine but not so hot on coding.

Any help would be greatly appreciated.

By the way it seems to make no difference if I use network manager or wicd.

Cheers,

Baldrick.

jongkind
December 20th, 2008, 12:05 PM
I had the same. Then I installed wicd, which is an alternative for Ubuntu's network-manager), and the signal strength increased from 50-60% to 90%.

It can be downloaded from here:
http://wicd.sourceforge.net/

Baldrick_NZ
December 20th, 2008, 12:07 PM
I had the same. Then I installed wicd, which is an alternative for Ubuntu's network-manager), and the signal strength increased from 50-60% to 90%.

It can be downloaded from here:
http://wicd.sourceforge.net/

Didn't work for me. Only created more issues...

jongkind
December 20th, 2008, 12:41 PM
Didn't work for me. Only created more issues...

I would help if you indicate what these 'more issues' are....

brandonhon
December 20th, 2008, 05:17 PM
i tried wicd and it did nothing for me, same issue with low signal strength and dropped connection. i tried the livecd based on hardy and kabang, great signal strength. so i decided to just install the hardy version. now my signal strength is great but my connection just drops in the middle of surfing.

any suggestions on this issue?

almikul
December 20th, 2008, 06:37 PM
i tried the livecd based on hardy and kabang, great signal strength. so i decided to just install the hardy version. now my signal strength is great but my connection just drops in the middle of surfing.

any suggestions on this issue?
Try this https://bugs.launchpad.net/ubuntu/+source/linux-ubuntu-modules-2.6.24/+bug/258344. For some reason, I could never compile these drivers provided by Realtek, but it may work for you. My connection on Intrepid, however weak it is, never drops, so I just switched back to Intrepid.

Argard
December 20th, 2008, 06:41 PM
hi brandonhon,

please post what wireless card/driver you are using. You should be able to find that information in:

lspci
lsmod

try lsusb, this asus card uses usb wireless card

Baldrick_NZ
December 20th, 2008, 07:44 PM
I would help if you indicate what these 'more issues' are....

Thanks for the reply Jongkind.

Mainly drops out and doesn't reconnect with wicd. Seems to me that it drops out when you move the PC and loose signal, then when you are back in signal range it won't detect that AP at all, even after a refresh, unless you re-boot.
Network manager not only detects the network but reconnects to that network after a drop out.

Would really like to solve the signal issue though, tired of using xp for surfing the internet while I've got this orsum os doing nothing.

brandonhon
December 20th, 2008, 08:55 PM
here is my lsub results.

by the way thanks for everyones help

Argard
December 21st, 2008, 07:16 PM
here is my lsub results.

by the way thanks for everyones help

see,

yours:

Bus 005 Device 006: ID 0bda:8187 Realtek Semiconductor Corp.

Your card, like mine

mine :

Bus 007 Device 002: ID 0bda:8187 Realtek Semiconductor Corp.

I was using ubuntu standard driver, but don't work, then I removed it, and installed the win98 driver using ndiswrapper, but I connect but the problem in the link happens.

http://ubuntuforums.org/showthread.php?t=1016859

Then, tired,I bring the access point to my room and I am using a eth0.:(

brandonhon
December 29th, 2008, 02:02 AM
my fix:

1. look for cat5 cable
2. cable found
3. plug in and disable wireless
4. everything works great :)

i hope this thread will eventually help someone with the same issue i was having. being kinda new to the *nix environment i just decided to go with what works.

good luck

AlexBellisBrown
January 1st, 2009, 07:21 PM
Its defo a driver issue, hopefully launchpad knows about this, ill have a look to see if they do. My RTL8187 has never worked well, not on Hardy, nor Intrepid. In hardy i had fine signal strength but the dropping connections, but now on Intrepid, the signal is so weak its not worth bothering. On XP it works perfect, But the driver issue exists with ubuntu.

AlexBellisBrown
January 1st, 2009, 07:27 PM
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/293946

Launchpad bug report, can everyone effected please post something there? The more evidence of a problem, the faster itll be fixed. Thanks :)

tymek666
January 3rd, 2009, 03:44 PM
I have similar problem with newest kernel 2.6.27-11 and Intel wireless (ASmobile S96-jm laptop). The signal is very low when this kernel is used. With older one, 2.6.27-9 (official) works fine.

brandonhon
January 3rd, 2009, 11:39 PM
i visited launchpad yesterday and left a comment. thanks for the help. i hope this issue gets resolved.

thanks again

tymek666
January 4th, 2009, 07:52 PM
Well, today's linux-restricted update fixed my issue. Now I have good signal on 2.6.27-11 kernel.

Pitou
January 7th, 2009, 09:05 PM
tymek666,

Can you tell me how you did upgrade your kernel to 2.6.27-11?

I'm at 2.6.27-9 and when I do a sudo apt-get update/upgrade, it tells me that there is no update available.

I have a Realtek 8187 on a Asus P5K-E

Thank you.

Pitou!

brandonhon
January 8th, 2009, 01:07 AM
i believe if you just go to system -> administration -> update manager you will see those updates.

i don't see some of the system updates when i use apt-get. hope that helps.

Bourne_Identity
February 9th, 2009, 11:13 PM
I had the same. Then I installed wicd, which is an alternative for Ubuntu's network-manager), and the signal strength increased from 50-60% to 90%.

It can be downloaded from here:
http://wicd.sourceforge.net/

So when I go to the Sourceforge link above and follow the instructions for downloading wicd I get an error. They say go to synaptics package manager and enable a repository which is fine. Then the next instruction is to open a terminal and enter:


wget -q http://apt.wicd.net/wicd.gpg -O- | sudo apt-key add -

But I get an error returned through bad usage of the apt-key arguements. So what is wrong with the above line please ?

Thanks in adavance

zstein
February 10th, 2009, 08:02 PM
I'm very new to Linux. Recently, I bought myself a new laptop, and decided to install Ubuntu 8.1 on my old one to play around with, try and teach myself a bit about Linux. (The laptop with Linux is a IBM A20m, pentium 3).

I plugged a Netgear WG111v2 USB wireless adapter in, and was quite pleased to see that it didn't need configuring...it immediately picked up my router in the next room and asked me for the WEP key. I was able to connect right away, surf, get email. But....

The signal strength is never more than 1 bar, and seems to vacillate between 14%-17%. I have a Windows XP laptop in the same room and it has a full signal with 5 bars.

Also, when I am on for a little while, I cease to be able to surf or get email...it just stops until I reboot. But it shows me still connected to the same IP.

Any advice for this newbie on:
A. Improving signal strength
B. Ending whatever causes the system to stop communication with the internet yet stay connected to the router?

Here is the ifconfig -a while I'm connected:

zane@zane-laptop:~$ ifconfig -a
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:89 errors:0 dropped:0 overruns:0 frame:0
TX packets:89 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:8116 (8.1 KB) TX bytes:8116 (8.1 KB)

pan0 Link encap:Ethernet HWaddr a2:7b:7a:80:65:67
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:0
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

wlan0 Link encap:Ethernet HWaddr 00:18:4d:c3:d4:e6
inet addr:10.0.0.3 Bcast:10.0.0.255 Mask:255.255.255.0
inet6 addr: fe80::218:4dff:fec3:d4e6/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:32466 errors:0 dropped:0 overruns:0 frame:0
TX packets:2529 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:13301295 (13.3 MB) TX bytes:645841 (645.8 KB)

wmaster0 Link encap:UNSPEC HWaddr 00-18-4D-C3-D4-E6-34-65-00-00-00-00-00-00-00-00
UP BROADCAST RUNNING 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)

Here is the iwconfig:

zane@zane-laptop:~$ iwconfig
lo no wireless extensions.

pan0 no wireless extensions.

wmaster0 no wireless extensions.

wlan0 IEEE 802.11bg ESSID:"ZANE"
Mode:Managed Frequency:2.412 GHz Access Point: 00:1F:33:34:28:06
Bit Rate=54 Mb/s Tx-Power=27 dBm
Retry min limit:7 RTS thr:off Fragment thr=2352 B
Power Management:off
Link Quality=15/100 Signal level:65/65
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0

and running lspci:
zane@zane-laptop:~$ lspci
00:00.0 Host bridge: Intel Corporation 440BX/ZX/DX - 82443BX/ZX/DX Host bridge (rev 03)
00:01.0 PCI bridge: Intel Corporation 440BX/ZX/DX - 82443BX/ZX/DX AGP bridge (rev 03)
00:02.0 CardBus bridge: Texas Instruments PCI1450 (rev 03)
00:02.1 CardBus bridge: Texas Instruments PCI1450 (rev 03)
00:03.0 Communication controller: Agere Systems WinModem 56k (rev 01)
00:05.0 Multimedia audio controller: Cirrus Logic CS 4614/22/24/30 [CrystalClear SoundFusion Audio Accelerator] (rev 01)
00:07.0 Bridge: Intel Corporation 82371AB/EB/MB PIIX4 ISA (rev 02)
00:07.1 IDE interface: Intel Corporation 82371AB/EB/MB PIIX4 IDE (rev 01)
00:07.2 USB Controller: Intel Corporation 82371AB/EB/MB PIIX4 USB (rev 01)
00:07.3 Bridge: Intel Corporation 82371AB/EB/MB PIIX4 ACPI (rev 03)
01:00.0 VGA compatible controller: ATI Technologies Inc Rage Mobility P/M AGP 2x (rev 64)

Any advice, aside from moving to a newer laptop?

Zane

Juggercat
February 11th, 2009, 03:01 AM
Ive been having exactly the same problems recently... before my internet used to download at speeds of 100-300 kbs... now its downloading at 40kbs with down them all!

Internet surfing is fine... and it doesnt drop at all... but i have between 1 and 2 bars...

With WICD it doesnt even connect to the wifi...

:S

pwp7669
February 20th, 2010, 06:16 PM
I recently replaced a Ubuntu 9.10 fully updated system with a clean install of Xubuntu 9.10 (also fully updated as of yesterday). The signal strength of my wireless connection dropped from ~90% an the older system to ~40% with the newer install. No changes to my PC, wireless card (IBM 802 CAG), wireless access point, or physical location. Any ideas on how to restore the higher performance?

Peter

pwp7669
February 21st, 2010, 12:47 PM
Problem Solved. I applied latest Ubuntu updates (32 files as of 23:30 yesterday) and rebooted my system. Wireless connection now reported by Wicd at 100% strength. Ah sweet mysteries of applying updates!

:grin:
Peter