I think I have found the answer although I am not sure why it happened.
Reading up about IIS Express it seems SSL requires a port between 44300 and 44399.
For some reason VS2013, or at least my instance of it, defaulted to port 1881.
further information can be found here
to change the port my project was using a edited the IIS applicationhost.config located at C:\Users\YOUR_USER\Documents\IISExpress\config
Hope this helps anyone who is having the same issue.