I switched to channel 13. Less problems but if the Internet connection
is (shorter) blocked I get:
Or:
sudo iwlist wlan0 scan
wlan0 Interface doesn't support scanning : Device or resource busy
Or:
wlan0 Scan completed :
Cell 01 - Address: B0:B2:DC:10:33:6C
Channel:13
Frequency:2.472 GHz (Channel 13)
Quality=70/70 Signal level=10 dBm
Encryption key:on
ESSID:"Zadel"
Cell 06 - Address: 00:0C:F6:42:DD:9A
Channel:11
Frequency:2.462 GHz (Channel 11)
Quality=70/70 Signal level=10 dBm
Encryption key:off
ESSID:"Sitecom"
The Quality is the same and that should not be possible. So, something
very low level is going on. It is beyond my capabilities to debug this.
The problem is driver bound. That is, some drivers never have this
problem. At my place an Intel N2230 driver. Other drivers have a lot of
problems. That my home Rtl8192se drivers.
So, it is still not clear what causes this bug.
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https://bugs.launchpad.net/bugs/495981
Title:
NM disconnects Wi-Fi every 2 minutes but iwconfig+dhclient and wicd
don't -- ath9k
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