On 09/10/15 10:23, Gordon Messmer wrote: > > Since those don't help, that tends to suggest that the problem isn't > an intermediate host, but the server itself. Possibly an IP > conflict. Also, check the output of "dmesg" to see if there are any > problems recorded with the NIC. Check the output of "ifconfig" to see > if there are TX or RX errors that increase when your connections are > reset. As Gordon suggests, let's see if the problem might be related to a dying NIC. The output of the following command may reveal any illness: # ip -s -d l l Cheers, ak.