[En-Nut-Discussion] TCP Sockets hang on certain occasions

[Adeel Nafis]

Good Day everyone,
We have a product using ethernut, the slave devices update the master 
device periodically, through TCP every 10 seconds.  However we have noticed 
that sometimes all communication comes to a halt, even the HTTP Server is 
inaccessible, but other threads keep working. A restart is required to get 
the device working again.
The hardware is very similar to AT91SAM7X Evaluation kit from Atmel.
Used Yagarto script to compile for Linux.
All the devices connected together through a single switch.
The problem happens intermittently, but does happen, sometimes a month 
after restart, sometimes just a day after restarting. We have gone through 
the code but have not found any logical bug, any pointers to how we can go 
about troubleshooting the problem?
Regards,
Adeel Ahmed