Spoke too soon - it is still happening. Just took longer to trigger.
I noticed that if I restart network manager after the hang (/etc/dbus-1/event.d/25NetworkManager restart), the wireless networks will still be seen but cannot be connected too (in the panel icon both circles stay blue while the swirly thing swirls for a bit, where as the bottom circle is normally green).
Spoke too soon - it is still happening. Just took longer to trigger.
I noticed that if I restart network manager after the hang (/etc/dbus- 1/event. d/25NetworkMana ger restart), the wireless networks will still be seen but cannot be connected too (in the panel icon both circles stay blue while the swirly thing swirls for a bit, where as the bottom circle is normally green).