Not able to connect to photon all of a sudden?

Randomly in the middle of a 3 hour work session I started getting this error when I try to run the photon multiplayer game Im making. I’ve never gotten this before and even after reverting to a backup copy of the project, that worked perfectly an hour ago Im still getting this same error. Any help would be amazing, this is driving me nuts. Thanks
The two errors that come up in the log:

Connect() failed: System.Security.SecurityException: Unable to connect, as no valid crossdomain policy was found
Received unknown status code: SecurityExceptionOnConnect

http://docs.unity3d.com/Documentation/Manual/SecuritySandbox.html

if you use the cloud then you will need to drop ExitGames support a mail.
If you host your own server ensure that you didn’t change the firewall / router and still forward tcp port 843 as thats the port used by unity by default on which photon also provides it.

that or check if you switched your project by error from desktop to webplayer without doing the above

Problem solved?