Thanks for posting to our Forums! I'm sorry to hear that your are having this issue, and I can understand your frustration.
In this situation and with the error code W220 the issue would be an connection issue between your Slingbox, our server and where you are located trying to stream video. I understand that resetting the Slingbox seems like a far fetched trouble shooting step. However if you do a factory reset to the Slingbox, the Slingbox will rerun the Internet viewing test and this will make sure the firewall on your router at home is not causing an interruption in the needed connection sequence.
Check this Article:
Hope this helps!
The Sling Media Moderation Team
This was the incorrect answer for my error. My slingbox is located in Detroit and I live in Denver. I just came back to Detroit and I'm using Slingbox fine. I have used it on the same network that slingbox is broadcasting to, along with two different Wi-Fi networks and have had zero trouble. However, my wife is still out in Denver and is getting the same server error when trying to bring it up. There is an error with the Slingbox Servers out there. The Factory reset did not solve the problem and the Slingbox itself is obviously still working just fine. The longer this is out, the more I have been telling other prospective buyers of Slingbox not to get the product because of poor customer service and these server problems.