Arch Linux

zapporius

Member

Registered: 2007-12-09

Posts: 3

Decaying wireless performance

I have Dell Precision m65, with intel wireless card (iwl3945). It connects to my linksys WRT54GS wireless router, WPA encryption.

The problem (with this particular laptop) is that when I start to transfer a file to it, at first it starts at full speed, but the transfer rate degrades withing seconds to 100KB/s, and stays there.

The other laptop I have (acer ferrari, broadcom card) has no such issues.

Any ideas?

Crooksey

Member

From: UK ~

Registered: 2006-08-14

Posts: 415

Website

Re: Decaying wireless performance

iwl3945 is still not stable, connection drops are a common problem.

Use the ipw3945 package, works fine.

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Arch Linux since 2006
Python Web Developer + Sys Admin (Gentoo/BSD)

shining

Pacman Developer

Registered: 2006-05-10

Posts: 2,043

Re: Decaying wireless performance

I have the same problem, that's annoying me highly. Both with ipw3945 and iwl3945.
But for ipw3945, I found a work around :
https://bugs.launchpad.net/ubuntu/+sour … bug/103210

-> sudo iwpriv eth1 set_mode 4

However, I couldn't find the equivalent (or any other workaround) for iwl3945. Now that iwl3945 is included in the kernel, I am even more willing to use it (also it doesnt require that daemon crap). So if anyone has a workaround, I am highly interested.

Btw, it's not a connection drop, it's a performance drop. The connection still works fine, it's just stuck at a 10x slower speed. (0.15 MB/s instead of 1.5 MB/s).
I have a linksys wrt54gl router, running openwrt, and using wpa2.

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zapporius

Member

Registered: 2007-12-09

Posts: 3

Re: Decaying wireless performance

thx for reply, I'll try with the ipw driver + fix