I bought a slingbox hd pro today. I tried to hook this up using slinglink first. The slinglinks seem to work fine, I see network activity with the lights. However, the slingbox has a slow flashing light and cannot connect. Before you try to tell me, I have already been through all the self help pages. I have tried hooking the box directly to the router, tried switching cables, tried resetting, tried unplugging everything then plugging back in with the specified order - all to no avail. Unless you have some magic bullet solution, it is going back to the store tomorrow.
I can't spend $500 on something that is not more or less plug and play. I have more than 6 hours into this already and that is 6 hours I do not really have to spare.
If you applied the troubleshooting steps included on these links
and the issue persisted, you can give it a try and test a new power adapter. Test it out and let us know how it works.