Comment 38 for bug 581936
Revision history for this message
| jhoechtl (johann-hoechtl) wrote Re: [Lucid]Sudden drop of connecton speed (iwl3945 & Broadcom issue) | #38 |
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73416ba
(Get the code!)
I have found a permanent solution ... albeit it is no fix for others ;)
The story is lengthy and should probably go to a blog but there it would lack the context, so I put it here.
I recently upgraded my HTC Desire to Android 2.2 and found out that the device couldn't obtain an IP any more. I dove into different forums and found, that the linux kernel of Android 2.2 has issues with _certain_ routers resp. the driver of the chipset. I went to a public WIFI point and WIFI on the Android 2.2 was fine.
I borrowed a friends "spare" WIFI router and ... guess what ... Android 2.2 WIFI worked _and_ my speed issues with WIFI in Ubuntu 10.04 are gone too!
I consider this a very mysterious bug, I attribute it to a combination of old Linux wlan stack in my router vs. newer stack in Ubuntu 10.04 (openswan?) and the wl driver. The received packets of the router, faulty or not, triggered a slowdown in the WIFI connection of the laptop.
BTW. the connection between my router and and the laptop is now of "N"-Type, 2.4GHz, while before it was of 802.11g type.
I will investigate if speed remains also stable in "G" - mode.