Re: Message from the NSAPI plugin: No backend server available for connection: timed out after 10 seconds or idempotent set to OFF.
Ouch, that error message doesn't sound good. I'm assuming this came up from sprint.com. Have you tried using a different brower or computer. You can always dial *3 from your Sprint phone to pay your bill over the phone. Here are other options to pay the bill as well: