Hi ACC483945 and all,
It seems hat you are having some issues with the Slingbox SOLO since it stopped working all of a sudden and shows no network light at all.
The reported symptoms might be related to a faulty power adapter. In all case, I recommend you to check this article and follow the recommendations:
Hope this helps!
I had the same problem. I got a new power adapter from Sourceswide on Ebay for $10. I have no connection to them. I just thought I would share the cheapest place I found. I searched for Slingbox Solo power adapter and found them. The one I got seems to be designed specifically for Slingbox Solo. I tried it and got a network light. Then I reset the Slingbox and the network light went off. A minute or so later it stared flashing. I was worried that the new adapter wouldn't work. I reset my router and that fixed it. If you have a new power adapter and it doesn't seem to help, try resetting your router.