Step 1: Update httpd.conf to add this line
Allow from 192.168.1.0/255.255.255.0 # for LAN
Allow from all # for any computer in the world
Remember to restart Apache server after change the httpd.conf
Step 2: Check Windows Firewall.
- Is the port 80 open?
- Is the Apache Web Server (\wamp\bin\apache\Apache2.4.4\bin\httpd.exe allow to receive the request from other?