I have been trying to manually download a couple of plugins but the server doesn't deliver the zip file to me.
My dashboard activity shows that I've tried to download them several times, but when I'm on the plugin page and click to "just download plugin", it will stay in the "waiting on premium.wpmudev.org" and never start the download.
It doesn't seem to be a transient server thing, since I let one download try to start for 15 minutes, and I've been trying various plugins to download for over half an hour.
It's not my internet connection, because other sites are loading fast and completing downloads (wordpress.org, for example).
So the plugin pages are taking longer than normal to load, and after they do load, they are not successfully allowing zip file downloads.
Using Chrome, if that helps.