You'll need to provide more info... When you connect it, the shuffle's light comes on briefly, but then goes out? Does the shuffle appear in iTunes?
Is your computer a Mac or Windows PC? If Windows, what release of Windows are you using? If Mac, what's the Mac model?
the led indicator light wont stay on as before
When you say "as before," I assume that means this shuffle worked properly before at some point. Was that with a different computer, or this same computer? If same computer, anything major that was different before when it worked properly?