On 20. Feb 2021, at 01:16, Andras Toth <diosbejgli@gmail.com> wrote:

00:10:28.921224 IP6 (flowlabel 0x4901f, hlim 54, next-header TCP (6) payload length: 1460)

Weird. Why would an IPv6 server ever send a full-sized packet?

You have to sacrifice ~100 bytes to the firewall gods.

Grüße, Carsten