We have been hit twice by IP range bans that are automatically put in place by the Convio system when there are too many failed transaction attempts. In both of these cases transactions were completely disabled for a number of hours on our system even though the failures could be easily explained. The only way currently you know if a ban has been put in place is when users start calling the institution to ask why their transaction is failing. By this point, many donations have been lost. Additionally, admins can't clear these blocks - they have to call support and have engineering remove them. This is perplexing. The system should send a notification as soon as a block is put in place to admins, and admins should have recourse to clear these blocks themselves.�