Neither of the suggestions for Error 601 and 401 appear to be true in my case at least. My husband paid for his subscription with no problems. I try to pay for my subscription twenty minutes later on the same network and computer with the same credit card. I get both errors after trying two different payment methods. Therefore, I HAVE to assume that it is not on my end. The only difference between his account and my account is that I have mine linked to a CE v1.0 and he just bought a standard game in August.