Authorize.net's Fraud Detection Suite has an IP Velocity Filter that is enabled by default on most accounts. This filter will prevent large numbers of transaction attempts from the same IP address from being processed. This also has the side effect of preventing ChamberMaster/MemberZone from processing batches of transactions when they are legitimately requested. To allow ChamberMaster/MemberZone to process transaction batches and to allow this filter to continue to protect your account you will need to add our IP address as an exception:

1. Log in to your Authorize.net Portal and click on Fraud Detection Suite.

   

2. Then click on Transaction IP Velocity Filter.

   

3. Enter the IP address 216.17.94.178 in the boxes. Select the Add> button and then click Save.