Hi, @Glenn Maxwell
Thank you for posting in Microsoft Q&A forum.
80/443 is allowed for DP and MP server.
8530/8531 is allowed for SUP server.
If you just want to get updates, install applications, these ports are enough.
For other ports to use:
https://video2.skills-academy.com/en-us/mem/configmgr/core/plan-design/hierarchy/ports
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