Everything seemed okay, then it just quit

So I still can't figure out why it won't let me download more than one song at a time. I have everything set that I'm supposed to have set, but it just won't let me do more than one.

But that's not even the bigger problem. Generally everything else had been okay, but as of the middle of yesterday afternoon, I can't download anymore. I have tried numerous songs, different bands, different genres, different connection types, different bitrates.....nothing works. Once or twice it has started to connect but then it cuts off after a few seconds.

I din't change anything. I didn't click anything. I didn't alter preference. It has just quit working. Any thoughts?

And how do you change hosts and what does it even mean to change hosts? Maybe that's my problem. I have no idea. And please don't refer me to the FAQs because they couldn't be more useless.