Ok.....let's break this problem down to it's vaiables. First, there's your pc. Are you connectivity issues with any other USB devices? Then there's the USB cable itself. Have you tried a different cable? Then there's FL studio. Have tried connecting your Audiobox with ANY other DAW, VST host or standalone program that uses ASIO drivers? Then there are the Audiox Drivers, (Universal Control),. Have you tried a clean un-install/re-install of UC? There is also the possibilty that the Audiobox itself has failed.

You need to test and elimante each of these variables. When you have elimanted all but ONE you will then know hat the problem is.

That being said we can help you better now and in the future with a bit more info......if you will post your system specs in your signature, (see my sig), we will be better able to troubleshoot your problems. Without knowing what type of pc you're running, what OS you're using, what DAW, make and model of your audio interface etc....we often can't recommend a "simple fix"

If you have not already done so please READ THE MANUAL!