I was concerned after getting the gibberish page when using the tool (I used my PC as a web server) been tearing my hair out until I grabbed a spare android phone and made that a web server.
This was 100% a ID10t error, if you're having issues re-read everything twice!
So happy it finally...
Long-time lurker first-time poster! Big fan of all the work done to get the most out of my Sony systems. (PS1/PS2/PS3/Vita)
I've just got to remember to check here before updating my PS4 more often. Hopefully, having an account will be a friendly reminder!