If you previously held a subscription to the New York Times digital edition (using your Kenyon email), you may get the error message "access unavailable" if you try to subscribe through Kenyon's subscription. Please contact the New York Times support team and they can help close out the account and open the account up for the academic pass (customercare@nytimes.com / 1-800-591-9233).
The New York Times also offers a troubleshooting guide for the problems some users encounter.