Jan, I owe you a beer! I have an HP G62 laptop with this wireless card: 02:00.0 Network controller: Atheros Communications Inc. AR9285 Wireless Network Adapter (PCI-Express) (rev 01)
I have an Asus RT-N10 router, which I had been using happily with Wireless-N+WPA2 while on Maverick. I usually got local file copy speeds of 3-4 MB/sec over this wireless network... until I upgraded to Natty, then suddenly my transfer rate dropped to 200 KB/sec, although everything looked fine according to iwconfig, which claimed it was connected at 150 Mbit/sec. I tried your suggestion of creating /etc/modprobe.d/ath9.conf with : options ath9k nohwcrypt=1 and rebooted, and now I'm back to 3MB/sec local transfer speeds. Thanks for the suggestion! By the way, I also have a Linksys WRT54G operating in WPA (not WPA2). Transfer speeds to this router were fine in Maverick and Natty, even before I tried this fix. So maybe this problem is limited to WPA2 networks? Josh -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/754176 Title: ath9k wireless connection extremely slow -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs