This is usually a networking issue and you should work with your network administrators to analyze and resolve. You might get hints from my old blog post, https://halfblood.pro/self-hosting-series-why-cannot-my-web-server-iis-be-reached-from-anywhere-else-8da0e0b252ef
How to make my IIS Server public
Николай В. Самоходов
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I check my Settings for the server and add rules to the firewall, check the addreses, but I still can not connect.