Hi,
my embedded application send to Cosm some sensor data every 15 secs. Everything works fine for about 20 connections. At some point there is a TCP retransmission due to, I am supposing, a missing ACK. After that no data is received from the Cosm Server and the connection doesn't complete properly.

In attach the pcap captured for the connections. Any suggestions is welcome.

I am using lwip 1.3.2.

Thanks
Jaws

Attachment: connection_issue.pcap
Description: application/cap

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