Cindy, you'll need to run through your Slingbox network set up again, try changing the port you have it on. By chance did you update your routers firmware? I'd suggest unplugging your router and Slingbox, wait 30 secs or so, then plug them all back in. If still no success go into Sling network set up, change your port, then go to router and change your port forwarding. Make sure you click "Save" or whatever term your router uses to save all your settings so you don't lose track of them. Most common port used for Slingbox is 5001.