For any issues with the SlingLinks, in this cause about the network connectivity, I recommend you to check these articles, you will find some basic troubleshooting that might help,
Let us know how that works
I apologize for thread jacking, but I am having the same issue as of recent and possibly a resolution can be found for both of us. I've read through the recommended KB articles and they did not resolve my issue. I am running a slingbox solo, and two slinglink single ports. I've had this configuration for about 2 years and have never had an issue until about 1 month ago. What are some other steps to try?