I'm entering them that way. I've also tried just using the default date which is today's date. But I think there must be some other larger problem because after submitting the coupon, in the active coupons area it resets them to be 0 dollars in value, with no coupon code and the date of 11/30/2036.

Also, I'm going to be completely honest and say I have no idea what a server is. I'm using a new computer if that in anyway helps.