Which port does the wsus serversdownload updates from the internet？

[luoketiantiantian]

Which port does the wsus servers（windows server 2019） download updates from the internet？
how to change this port？
Does this port have to be 80 or 8530?
thank you!

[Roger Kallberg]

What do this have to do with anything within Collaboration or for that matter anything from Cisco? It’s likely better if you’ll ask your question on a Microsoft support forum.