I have a problem (I guess) with the TLS Handshake as long as I use Pi-Hole (installed a few days ago) as DNS.
Yesterday I wanted to visit a website and it timed out. I was baffled and checked it with my smartphone (WIFI, same network) and the website was working. I wanted to write an friend a mail about it, but my mail-website didn’t work as well. The only thing they had in common was that the last thing I could read at the status bar was about the TLS-handshake.
I tried out a bunch of things (date & time, other websites, some ‘is my browsers ssl ok’ websites). At the end I kicked out the pi-hole of the DNS setting of my Win 10 machine… and voila, everything works fine.
How could that happen?