Under high volume I seem to be missing some responses form the silent post url. When these requests come in it is hitting a php script I have that is saving this data to the database. After the high traffic periods are over I run another script to 'reconile' the orders and I always find a few hundred responses that did not get processed via the silent post url that do get processed when I reconcile.
What could be causing these responses to not be sent or for me to not be writing these? I'm fairly certain it's not my code as I use the same code when reconciling to write the responses so if they were coming in they should be written. I've tested my database for concurrent connections and added logging so it doesn't seem to be overwhelming the database. It really just seems like the responses are not coming from the auth.net side.
