WD media player cannot connect to WD media hub

I have  WD tv live plus that is connected through a Netgear power line adaptor to a WD TV Media Hub. I get internet and it reads that I have a Media hub. It connected with the media hub at first and I was able to see some of my files. Later on in the day I went back and tried to connect but it came back with  a message stating it had a problem connecting to the server. Why is that the case? I am very confused at why it worked at first and now it doesn’t and why did it not read all my files?

Did you were able to reconnect your WD TV Live to the Hub?