Comment 44 for bug 581936

Revision history for this message
Nick B. (futurepilot) wrote : Re: [Lucid]Sudden drop of connecton speed (iwl3945 & Broadcom issue)

I just upgraded my HP dv6500t laptop to Maverick and ran into this bug. I have never had this problem with any previous release. I usually get 15+ mbps from the internet. After upgrading to Maverick and running a speed test I'm only getting 1-1.5 mbps over wireless. Even LAN file transfers are painfully slow. I'm getting a pretty consistent 40KB/s transfer to my NFS server. One thing I noticed is that whenever this laptop connects to my router (WRT54GS running DD-WRT) the router reports the rate as 5.5mbps and sometimes even 2mbps. If I disconnect the laptop it jumps back up to 36 or 48mbps. There is definitely something weird going on with the way it interacts with the router, causing the rate to drop to extremely low levels.

02:00.0 Network controller: Intel Corporation PRO/Wireless 3945ABG [Golan] Network Connection (rev 02)
 Subsystem: Hewlett-Packard Company Device 135b
 Flags: bus master, fast devsel, latency 0, IRQ 47
 Memory at f4000000 (32-bit, non-prefetchable) [size=4K]
 Capabilities: [c8] Power Management version 2
 Capabilities: [d0] MSI: Enable+ Count=1/1 Maskable- 64bit+
 Capabilities: [e0] Express Legacy Endpoint, MSI 00
 Capabilities: [100] Advanced Error Reporting
 Kernel driver in use: iwl3945
 Kernel modules: iwl3945