Since the 1.9 update, I've been getting the next error up (Server problems rather than connectivity problems) quite often.. like every 5 minutes.
It's not always clear to me which issue the errors are telling us about... Something on our personal computer or internet connection, something on the Steam server, or something on PZ's own franchise server. Often, the error notices will cycle through a couple of these different ones.
I'm hoping it will be fixed in the next update.... of whichever server/computer/problem area it is, whether that be windows, steam or pz.