I was not able to reproduce the issue on Windows. It is weird to me to see the double
http in the message
Error getting URL http://http://localhost/wp-admin."
Could you provide us with more information?:
- What parameters did you use during the installation?
- Could you send us the contact of your
Registration has been disabled message, you case see in this case that some browsers do not support to log in the WordPress multisite application if you are using and an IP address (e.g. chrome or safari). It is advisable to specify a domain name.
About the cookies issue, as you can see here:
WordPress Multisite requires that you use different domain names for each site. In order to make it works, we configure a transparent xip.io domain to the current IP address. Without this, you may get a “Cookies are blocked or not supported by your browser. You must enable cookies to use WordPress” error message. In any case, it is highly advisable to use domain names instead of IP addresses when connecting to the application through a browser. Learn how to configure WordPress Multisite domains.