Windows server 2008 rejecting packets from client

Posted by l46kok on Server Fault See other posts from Server Fault or by l46kok
Published on 2012-10-25T04:35:41Z Indexed on 2012/10/25 5:06 UTC
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windows-server-2008

We deployed a server application in .NET 4.0 that is going to run on Windows Server 2008 R2. Strangely, the clients cannot connect to the server given an external IP and the server port.

I've ran wireshark diagnostics on the server computer and verified that the packets are arriving to the NIC without any issue so it seems Windows Server 2008 is the culprit here.

I've tried to temporarily disable the firewall and add the server port into inbound/outbound rule but it still doesn't solve the issue.

How can I solve this issue?

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