3 to 5 minutes after succesfully establishing a connection, my device
loses connectivity; network manager doesn't report it being dropped,
but every attemp to establish a data transfer, results in icmp
destination unreachable.
Even trying to ping my local router goes 'destination unreachable'
I'm attaching a debug=5 rtl8192cu log; hope it helps.
Fedora 20 x86_64
linux 3.14
backports 20140417
AWUS036NHR
Alex