As I am working in a corporate where developers faces firewall issues, So for me none of above resolved my issue.
As the port is not used by Skype, but by some other internal applications So I followed below steps to resolve issue:
Step 1 - From XAMPP Control Panel, under Apache, click the Config button, and select the Apache (httpd.conf).
Inside the httpd.conf file, somehow I found line that says:
And change the 80 into any number / port you want. In my scenario I’m using port 8080.
Still from the httpd.conf file, I found another line that says:
ServerName localhost:80 And change 80 to 8080. ServerName localhost:8080
Step 2 - From XAMPP Control Panel, under Apache, click the Config button again, but this time select the Apache (httpd-ssl.conf). Inside the httpd-ssl.conf file, find line that says
And change the 443 into any number / port you want. I’ll using 4433 as the new port number.
Still from the httpd-ssl.conf file, find another line that says
<VirtualHost _default_:443> ServerName localhost:443
And change 443 to 4433.
<VirtualHost _default_:4433> ServerName localhost:4433
Remember to save httpd.conf file and httpd-ssl.conf after you make some changes. Then restart the Apache service.