NGINX, DuckDNS

Hi,
I hope somebody can help me. Im currently trying to setup my HA to access it localy via http and remotely using https. Sofar i managed to setup everithing correctly, http (http://192.168.XX.XX:8123) and https (https://mydomain.duckdns.org) is working when Im in home or connected via VPN, but when Im trying to connect from my work using Chrome, I end up usualy with screen “Unable to connect to Home Assistant. Retrying in XX seconds”… but sometimes Im able to connect for a minute or so.

Has anybody idea how to solve it?

Thank you.

Maybe your work block it

Try Firefox, it may work

Thank you, IT security confirmed that.