Is there somewhere I can find and then download and install the ath9k driver from a USB? (I am given to understand that it should come with the distro, but it certainly doesn't in Lubuntu 16.04). Is there some way I can find and download updates on my main PC, and transfer them via. ethernet to my router, as it is upstairs at the back of the house and the PC in question is downstairs at the front. Some guides even tell me to wget scripts just for the diagnostics step. The only solutions I can find tell me to download various drivers or updates, usually as a first step. So, I've been trying to get my wireless connection to work most of today.