The past 2 days I've been getting conversions that Prosper202 hasn't been reporting. It does report some conversions for the same offer, so I'm pretty sure my settings are fine.
Is this a given that everyone deals with? Or is something wrong?
something is wrong somewhere ....
try and use postbacks instead of pixels if you can
make sure you check where the pixel is fired, and if this is a https page, make sure your pixel is https
look at your analytics and see if you can spot a trend (ie is it always a specific browser that is not working)
try and get your click loss as low as possible.
but in the end you will always have some! on mobile more then on desktop.