Like I said they don't know what's wrong with the hydrogen masers. They are closely monitoring them and shut them down before they self destruct. Then wait a bit and start them up again. Hardly a secure stable system.
Still doesn't change the fact that most of the satellites which haven't been up that long are now relying on a backup mode to keep running.
It's going to take loads more cash to sort it all out. We shall see what happens I suspect loads of cash to save face will be the order of the day. I suspect they will have to replace all the satellites anyway to lock the UK out of the encrypted signal. It's not as if they can send a bloke with a usb stick to update the security keys.