Sorry to hear that you're having issues with the Desktop Player, but a P-2 error is actually a generic networking error. It's possible that your anti-virus has updated and is blocking the signal. I know Norton and Windows Firewall are notorious for blocking the signal and causing that error message. If you go into your anti-virus and add the Desktop Player as a safe program, this should fix the issue. Make sure, after you do, to restart your computer too; a lot of the time, the anti-virus change won't take affect until you've done that.
I hope this helps!