We experienced that TCP connections created with TCPunch can randomly fail on AWS. So far, we have not found the primary issue - the observed behavior that a TCP message is suddenly lost after exchanging 16 - 64 kB of data between peers. The data is sent, as verified by the Wireshark analysis, but the receiver keeps retrying for a TCP packet that never arrives. We have been able to reproduce the issue between two VMs as well.
So far, we have implemented a workaround that attempts to exchange 64 kB between two peers and restarts the pairing process.
We experienced that TCP connections created with TCPunch can randomly fail on AWS. So far, we have not found the primary issue - the observed behavior that a TCP message is suddenly lost after exchanging 16 - 64 kB of data between peers. The data is sent, as verified by the Wireshark analysis, but the receiver keeps retrying for a TCP packet that never arrives. We have been able to reproduce the issue between two VMs as well.
So far, we have implemented a workaround that attempts to exchange 64 kB between two peers and restarts the pairing process.