I have a website where my Mac works with MAMP. I could not connect to it via IP on another computer. I disabled the firewall on Mac and was able to connect by simply typing the IP address in the address bar. My turned out to be 192.168.1.69 . In order to get the actual website, I had to include the port number, i.e. 192.168.1.69:8888 . Make sure that you use your own IP address and not your public (you must run 192.168.XX or 10.XXX ). This worked to connect from another computer and from my phone.
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