On 10/14/2020 11:18 PM, Mark Nottingham wrote: > Send: > > GET /html/rfc7230 HTTP/1.1 > Host: tools.ietf.org > Is-Christian: ?0 > > Cheers, That's a bit too high level for me :-). But wireshark shows several TCP-SYN being sent and repeated to port 443 at 4.31.198.61, and no SYN-ACK ever coming back. On the other hand, ping responds just fine. Which means there is a firewall somewhere that sees fit to block the packets. Oh well. Time to get some sleep... -- Christian Huitema