I get that all the time and have been getting it forever. When I don't get that, is when use my cellphone connection. With that, it appears having a bad internet connection will cause that issue. When I'm connected to my hotel cable connection, I have to keep trying over and over and over till it finally works. My IP also keeps bouncing between 2 different IPs so not sure of that's it out just the allow and horrible connection. Time Warner business cable.