As you wrote, “I’m trying to create the Conda environment in my work computer, it seems like don’t have access to connect”; this appears to be confirmed by the error message coming from KNIME AP when it tries to connect to the repo to get anaconda packages.
Environment creation failed: HTTP 000 Connection failed for url https://repo.anaconda.com/pkgs/main/win-64/repodata.json
An HTTP error occurred when trying to retrieve this URL.
HTTP Errors are often intermittent, and a simple retry will get you on your way.
If your current network has https://www.anaconda.com blocked, please file a support request with your network engineering team.
I concur with the error message - I suspect that there is a proxy or firewall in between your client and the target repo that is blocking the HTTPS requests. This is in line with what you also said about when you try to add nodes from the Hub (changing HTTPS to HTTP).
So, I recommend you file a support request with your network engineering team and see if they can carve out an exception for the sites you need to do your work (namely, the KNIME Hub and Anaconda repos.)