I'm running Fedora 15 on a laptop with a Broadcom 4318 wireless card. The Network Settings shows I'm connected at 54 Mbps, but my actual download speeds tested with speedtest.net show only about 0.15 Mbps download and 0.24 Mbps upload. My service is 2 Mbps download and 0.5 Mbps upload.
I'm using the B43 driver.
Any ideas on how to correct this?
Thanks,
Keith
On Fri, Oct 7, 2011 at 9:47 PM, Keith Clark keithclark@waterloosubstop.com wrote:
I'm running Fedora 15 on a laptop with a Broadcom 4318 wireless card. The Network Settings shows I'm connected at 54 Mbps, but my actual download speeds tested with speedtest.net show only about 0.15 Mbps download and 0.24 Mbps upload. My service is 2 Mbps download and 0.5 Mbps upload.
My wife didn't have quite the same issue. On her laptop she would get poor transfers of about 2.5MB/s but this was computer to computer on local wireless network. She would also get where other computers could see her and because of that network printers would drop off. Adding the following:
options b43 nohwcrypt=1
to /etc/modprobe.d/b43.conf
seemed to help. Others report adding "qos=1" to that helps as well. Just google around for broadcomm and nohwcrypt.
Richard
On Fri, 2011-10-07 at 21:55 -0500, Richard Shaw wrote:
On Fri, Oct 7, 2011 at 9:47 PM, Keith Clark keithclark@waterloosubstop.com wrote:
I'm running Fedora 15 on a laptop with a Broadcom 4318 wireless card. The Network Settings shows I'm connected at 54 Mbps, but my actual download speeds tested with speedtest.net show only about 0.15 Mbps download and 0.24 Mbps upload. My service is 2 Mbps download and 0.5 Mbps upload.
My wife didn't have quite the same issue. On her laptop she would get poor transfers of about 2.5MB/s but this was computer to computer on local wireless network. She would also get where other computers could see her and because of that network printers would drop off. Adding the following:
options b43 nohwcrypt=1
to /etc/modprobe.d/b43.conf
seemed to help. Others report adding "qos=1" to that helps as well. Just google around for broadcomm and nohwcrypt.
Richard
Hey Richard,
I don't have b43.conf. I have openfwwf.conf. The line options b43 nohwcrypt=1 qos=0 is already in there.
Keith
Keith Clark writes:
I'm running Fedora 15 on a laptop with a Broadcom 4318 wireless card. The Network Settings shows I'm connected at 54 Mbps, but my actual download speeds tested with speedtest.net show only about 0.15 Mbps download and 0.24 Mbps upload. My service is 2 Mbps download and 0.5 Mbps upload.
I'm using the B43 driver.
Any ideas on how to correct this?
The first thing to do is to figure out exactly what that needs correcting.
speedtest.net does not measure the speed between your laptop and your router, they measure the speed between you, and their servers. The same goes for any other web-based bandwidth measuring service. None of them have a magical ability to hack into your wireless router, and open a direct connection from your wireless router and your laptop, in other to measure how fast you can fling packets to your router, obviously. All they can do is measure how fast you can download something from them.
Unless you are sitting in speedtest.net's data center, and your wireless connection goes directly to their network, your speed will also be obviously impacted by your Internet provider's performance, and every Internet provider between your provider, and theirs.
So, in order to confirm that you have a wireless performance problem, you will need to perform exactly the same test, but this time with a wired connection to your router. If your bandwidth is now close to your expected 2mbps bandwidth, then only that would demonstrate an issue with your wireless setup. If you still end up getting subpar bandwidth, your wireless bandwith would obviously not be your issue.
On Fri, 2011-10-07 at 23:04 -0400, Sam Varshavchik wrote:
Keith Clark writes:
I'm running Fedora 15 on a laptop with a Broadcom 4318 wireless card. The Network Settings shows I'm connected at 54 Mbps, but my actual download speeds tested with speedtest.net show only about 0.15 Mbps download and 0.24 Mbps upload. My service is 2 Mbps download and 0.5 Mbps upload.
I'm using the B43 driver.
Any ideas on how to correct this?
The first thing to do is to figure out exactly what that needs correcting.
speedtest.net does not measure the speed between your laptop and your router, they measure the speed between you, and their servers. The same goes for any other web-based bandwidth measuring service. None of them have a magical ability to hack into your wireless router, and open a direct connection from your wireless router and your laptop, in other to measure how fast you can fling packets to your router, obviously. All they can do is measure how fast you can download something from them.
Unless you are sitting in speedtest.net's data center, and your wireless connection goes directly to their network, your speed will also be obviously impacted by your Internet provider's performance, and every Internet provider between your provider, and theirs.
So, in order to confirm that you have a wireless performance problem, you will need to perform exactly the same test, but this time with a wired connection to your router. If your bandwidth is now close to your expected 2mbps bandwidth, then only that would demonstrate an issue with your wireless setup. If you still end up getting subpar bandwidth, your wireless bandwith would obviously not be your issue.
Hey Sam,
Sorry I didn't mention that before. Yes, I've tried wired and I get the correct speeds as they should be. 2 Mbps download and 0.5 Mbps upload.
Keith
Keith Clark writes:
Hey Sam,
Sorry I didn't mention that before. Yes, I've tried wired and I get the correct speeds as they should be. 2 Mbps download and 0.5 Mbps upload.
There are a few low-hanging fruits you can check, to eliminate the obvious.
First, how many access points NetworkManager shows, besides your own. If you have a bunch of other access points round you, your wireless frequency may be saturated. You may or may not have better luck by reconfiguring your wireless router to use a different channel.
If your laptop is in a different room than your wireless router, or if you have other devices connected to your wireless router: turn off all other devices, take the laptop, and go sit next to your wireless router, connect to it, and see how fast things move when you're right next to it.
On Sat, 2011-10-08 at 00:02 -0400, Sam Varshavchik wrote:
Keith Clark writes:
Hey Sam,
Sorry I didn't mention that before. Yes, I've tried wired and I get the correct speeds as they should be. 2 Mbps download and 0.5 Mbps upload.
There are a few low-hanging fruits you can check, to eliminate the obvious.
First, how many access points NetworkManager shows, besides your own. If you have a bunch of other access points round you, your wireless frequency may be saturated. You may or may not have better luck by reconfiguring your wireless router to use a different channel.
If your laptop is in a different room than your wireless router, or if you have other devices connected to your wireless router: turn off all other devices, take the laptop, and go sit next to your wireless router, connect to it, and see how fast things move when you're right next to it.
Yeah, I thought of all that stuff too. It works fine on another laptop we have and it also used to work on this laptop running Ubuntu.
I really believe that this is an open firmware issue.
Keith
On Fri, Oct 7, 2011 at 9:09 PM, Keith Clark keithclark@waterloosubstop.com wrote:
Yeah, I thought of all that stuff too. It works fine on another laptop we have and it also used to work on this laptop running Ubuntu.
I really believe that this is an open firmware issue.
In that case, there are instructions here for obtaining and using Broadcom's firmware: http://wireless.kernel.org/en/users/Drivers/b43
Alternatively, there is a binary blob driver from Broadcom available in RPMFusion's "kmod-wl" package.
-T.C.
On Saturday 08 October 2011 08:17 AM, Keith Clark wrote:
I'm running Fedora 15 on a laptop with a Broadcom 4318 wireless card. The Network Settings shows I'm connected at 54 Mbps
54mbps is the local connection speed .... from your pc to the router/gateway
, but my actual download speeds tested with speedtest.net show only about 0.15 Mbps
speedtest.net shows speed from your router/gateway to internet hosted site
download and 0.24 Mbps upload. My service is 2 Mbps download and 0.5Mbps upload.
so it looks ok
I'm using the B43 driver.
Any ideas on how to correct this?
Thanks,
Keith
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Jatin K -
Keith Clark -
Richard Shaw -
Sam Varshavchik -
T.C. Hollingsworth