I’ve been struggling with this one for a few days now: I can use the IPN simulator to send a message that is received by my listener just fine. I can also get IPN messages through the sandbox just fine. Every time I try to post back though, the server just times out. No response. I can ping the server and get a response. I’m using <a href="HTTPS://ipnpb.sandbox.paypal.com" target="_blank">HTTPS://ipnpb.sandbox.paypal.com</a> I’ve tried several methods of posting the data, and every one of those methods has the same result—no response from the server. Before I start posting my code, which I’m not sure is the problem, what are the big ticket items I should be looking at? The most suspect at this point is my SSL certificate, which is 2048/256. Can it be shared? Does it need to be private? What other things could cause the server to just not respond? Thanks in advance, Brent
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