@王维洋 Hi,
Thank you for posting in Q&A!
Section 1.3.2 of the following Microsoft document describes how to configure direct access clients to connect to a alternative port other than 443, please refer to:
https://video2.skills-academy.com/en-us/windows-server/remote/remote-access/directaccess/single-server-advanced/da-adv-plan-s1-infrastructure
Hope you have a nice day : )
Gloria
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