Thanks for using our Answers Forum. I understand that you need a replacement IR cable for your Slingbox SOLO, things with hoovers happen.
I have a couple of links that should help you.
Buy now direct from Sling Media will allow you to purchase the IR blaster.
Contact Sling Media Support explains how to contact Sling Media Support anywhere in the world. If you are still under warranty, we can possibly take care of getting you a replacement for no charge. In the US, you can simply call 877-GoSling (877-467-5464).
Hope this helps.
Sling Moderation Team