The Floating Licenses are good forever; however, the checkout of the Floating License is good for for any duration from 4 hours up to 4 years, selectable at the time of check out.  After it reaches selected duration, it will automatically check itself back in.  You just need to re-check it out and set the desired duration. The default duration is 1 year. If your Floating License has expired go to TekAMS and recheck it out. You may review the license checkout details using the TekAMS application at: https://www.tek.com/products/product-license .