Make sure your Distill for Newegg pages is set to a minimum 60 second intervals for refresh (random is best) and don't have more than 4-5 going at once. Newegg implemented a 30 minute ban when it detects you are refreshing their pages too often.Instead of my cart, I got a 'Looks like you haven't been complying with Newegg's website use policy. We think we detected automated site visits.'
After a few moments I was able to reload, but it was sold out by then.