I see this error
This site can’t be reached. The web page at https://184.108.40.206/ (IP address) might be temporarily down or it may have moved permanently to a new web address.
If I run curl command it says
What is HTTP/2 444 error code? Is this normal?
It is a HTTP status code. Typically created by Nginx web server. It instruct nginx (or any other web server) to close the connection without sending a response to the client (in this case Firefox or Chrome or curl command), most commonly used to deny malicious or malformed requests access. There is nothing you can do. This is controlled by server. The best you can do is contact website operator and let them know about it. For example
curl -k -I https://192.168.2.254
Here is what it said:
date: Tue, 30 Jun 2020 13:36:27 GMT
OR when I skip the
curl -k https://192.168.2.254
ERROR - CONNECTION CLOSED WITHOUT RESPONSE