Google Chrome gives ERR_ADDRESS_UNREACHABLE error for HTTPS page (site is perfectly reachable via curl)

A otherwise perfectly working Chrome browser gives an ERR_ADDRESS_UNREACHABLE error for a request to a https page on port 8443. The page is reachable via curl, Firefox, Safari..

How would I go about debugging this? To be honest I have no clue where to start (chrome dev tools network tab provides no useful information at all)..?

Thanks so much in advance.


You can snoop HTTPS session traffic by Wireshark and for example observe SSL handshake phase problems. Please don't forget to add "host YOUR_HOST_NAME and port 8443" like filter to Wireshark to skip other traffic!