Hi Sandra, You seem to have an issue that gets noticed with a traffic pattern. Try to find a way to log stats somewhere because I can't imagine a way to figure this out without logging or real-time debugging. Try ARP flooding locally, maybe you are lucky. You might have an improper driver leaking memory, or one of your apps not behaving correctly, but I can't see further as I don't know the socket API and how it works with multithreading. Try to start a new thread with a more specific subject line if no one else jumps into this one. Regards
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