I am still having this problem and it's driving me nuts. I finally set up Wireshark to try and catch it in action and what I see is that Chrome suddenly responds with the FIN bit set during a download then it starts responding to all the TCP packets with the RESET flag set, 54 times, before the connection dies. I have tried all the suggested options like disabling docker (which I don't use) and even TCP offloading of my hardware but nothing seems to fix it. It also seems limited to Google Chrome. I do not see this problem when, for example, I use wget or Firefox. It seems to be a TCP related issue with IPv6 as far as I can tell.