I was told (and read on here) that the ip address range of the servers at authorize.net which will be communicating into our server is 64.94.118.*. However, according to the logs we are denying 66.185.185.5 when we run a test transaction. Can someone please provide the correct range? I called authorize.net, they told me the first range was accurate for test and prod, got the denial, called back and next person said they don't about test and said to check here. Search on this site for "ip address" produced nothing helpful. Shouldn't this be standard information required for setup? Thanks