Just returned from Central Europe where Slingbox worked perfect. In the US for 5 days and now In Cancun Mexico. I tried to watch slingbox and received the following message: "there was an error connecting to the box. Please check your network, firewall and router settings. Do you want to retry?" I'm old guy and not very techie. Are these things able to be checking from here or not??? Any help or suggestions would be appreciated. Thank you.