Lab is not working for any courses

I’m encountering an issue where course video lectures are working fine on the company network, but the labs are not loading or functioning at all. However, when I switch to my private network, the labs work without any issues.

This suggests the problem might be related to network restrictions or firewall settings on the company network. Could someone please help troubleshoot and resolve this?

It could well be network restrictions on the corporate network. The only people who can fix that for you are your company’s network team, who will probably refuse. Ports are only opened in corporate firewalls when there is a genuine business use case.