I can confirm this bug. I believe it has something to do with us having
Broadcom network controllers. I managed to find this on Launchpad by
Googling for "knetworkmanager disconnected first time" and immediately
noticed we both used Broadcom's.
0b:00.0 Network controller [0280]: Broadcom Corporation BCM94311MCG wlan
mini-PCI [14e4:4311] (rev 01)
Subsystem: Dell Unknown device [1028:0007]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR+ FastB2B-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 17
Region 0: Memory at fe8fc000 (32-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
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Knetworkmanager loose wireless connection, Networkmanager crashing
https://bugs.launchpad.net/bugs/159949
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