This happens very randomly. I can't tell which wifi is more affected than another since I use mostly the one of my work place, either : Eduroam (European Education wifi), and also the local wifi network (same antenna). I think it happens at my home too, but I took the habit to use Ethernet to avoid this kind of freeze.
(What, no edit/remove tool on Lauchpad ??)
This happens very randomly. I can't tell which wifi is more affected than another since I use mostly the one of my work place, either : Eduroam (European Education wifi), and also the local wifi network (same antenna). I think it happens at my home too, but I took the habit to use Ethernet to avoid this kind of freeze.
I'd like to add some information :
$ lspci -vnn -d 14e4:
03:00.0 Network controller [0280]: Broadcom Corporation BCM43142 802.11b/g/n [14e4:4365] (rev 01)
Subsystem: Lite-On Communications Inc Device [11ad:6605]
Flags: bus master, fast devsel, latency 0, IRQ 18
Memory at f7900000 (64-bit, non-prefetchable) [size=32K]
Capabilities: <access denied>
Kernel driver in use: wl