We have a laptop running Ubuntu 14.04 which routinely accesses the internet via wi-fi.
Today it won't connect, despite the fact that it reports the signal as strong/excellent (and my iPod connects effortlessly from the same room).
I haven't changed anything since yesterday. I've deleted the connection several times, rebooted, shutdown, and tried again. Nothing.
The router is set not to broadcast the SSID.
Any ideas folks, (Mark)?