I recently set up my remote desktop on my Vista Ultimate. Everything was working good, I could access it from the other Vista computer on my network and the Xp one. I also set up a dyndns account to access it outside of my local network. I configured both my firewall and my router for remote access also. The problem I'm having is now just out of the blue I can't access the computer from anywhere. Not the Vista or the Xp computer and certainly not outside of the network. I've gone through all my settings and everything is set up the same. I get an error off of the Xp mechine that says "An authentication error has occured (Code: 0x80090330). I'm trying to access with the ip address becasue using the computer name never worked for me.