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My Arch install has been working fine for several months, but last week my network performance suddenly became extremely poor over wireless (this is a desktop with PCI wireless card installed). Wired connections still work fine. Other computers on our wireless network have not had any problems.
The problem is extremely high latency. If I ping google.com, I get numerous responses with times over 1000 ms, and often duplicates. Functionally, it causes websites to load slowly, and I often have to reload a site multiple times before it will fully load. If I'm signed into Google Chat, it will frquently report that I am disconnected, and then re-connect a few minutes later.
The primary indication of the problem is that I receive the following in errors.log:
Sep 12 11:53:21 localhost kernel: [ 776.679738] ath: Failed to stop TX DMA!This message seems to be loosely correlated with connectivity problems, but not always. I also occasionally receive the following; it usually seems to be after the computer has gone into hibernation:
Sep 12 11:16:48 localhost kernel: [ 5584.707913] ath: Unable to reset hardware; reset status -5
Sep 12 11:16:49 localhost kernel: [ 5585.964084] ath: Unable to reset channel (2412 MHz), reset status -5
Sep 12 11:16:49 localhost kernel: [ 5585.964583] ath: Unable to set channel
Sep 12 11:16:50 localhost kernel: [ 5586.143980] ath: Unable to reset channel (2412 MHz), reset status -5
Sep 12 11:16:50 localhost kernel: [ 5586.377413] ath: Unable to reset channel (2412 MHz), reset status -5
Sep 12 11:16:50 localhost kernel: [ 5586.916044] ath: Could not kill baseband RXWhen this happens, I lose all wireless connectivity until I reboot. I can't even scan for networks.
I'm using wicd and wpa_supplicant. The problem is intermittent--sometimes everything will be speedy for an hour or two, but then it will suddenly slow down.
If you have any idea what might be happening or how to diagnose it, I would appreciate it!
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