Thank-you for contacting Slingbox Forum.
We are sorry that you are having problems with the Internet connection.
Here are two links that may help you with this issue. Understanding Watch on Slingbox.com error codes and A slow Internet connection at home can affect picture quality when using Internet Viewing.
You are able to test computer speeds to confirm them at speedtest.net.
We hope this helps you with the connection issue.
Sling Moderation Team