Adding to comment 52. The frequencies of the access point are the same.
In this example Channel 11. Is the networkmanager getting confused and
makes it a connection to the incorrect access point? All evidence points
in this direction. It explains also the wild changing of the signal
strength.
A work around is to change the channel of you own access point to an
unused channel. If there is one.
wlan0 Scan completed :
Cell 01 - Address: :::::
Channel:11
Frequency:2.462 GHz (Channel 11)
Quality=70/70 Signal level=10 dBm
Encryption key:on
ESSID:"Zadel"
Cell 04 - Address: :::::
Channel:11
Frequency:2.462 GHz (Channel 11)
Quality=67/70 Signal level=-43 dBm
Encryption key:off
ESSID:"Sitecom
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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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