Writer's Block

So, as you know I created this blog to keep everyone up to date on my book that is currently being published. Well, being a writer I have already written a second novel and am currently writing a third, but now I have hit a problem. The dreaded writer's block. I already have the entire plot line figured out, but I just don't have any motivation to write. I also have found that my motivation to read has also diminished and I am trying to figure out how to remedy this situation. I mean, I have given myself a break, I've tried looking at the story from many different angles but nothing seems to be working. Now, I have continued to write in all this time, but it is not progressing as quickly as I would like or have experienced in the past. Truth be told, I probably should have already been done, but I guess I just have to let the story progress. However, I would be open to any suggestions.