I've recently been trying to set up multi-site multi-domains for my WordPress installation, so that I can have multiple sites with separate domains. I believe the Domain DNS is setup correctly because http://www.saporibistro.co.uk now links to the correct WordPress site. However, I cannot login to Sapori Bistro. When I try to login with the correct details, it just refreshes the page. When I try to login with (purposefully) incorrect details, it gives me two errors:
ERROR: Invalid username. Lost your password?
ERROR: Cookies are blocked or not supported by your browser. You must enable cookies to use WordPress.
By the way, I do have cookies enabled.
Its been puzzling me for weeks! I can login to my original WordPress site fine. My sites are hosted on an Amazon EC2 instance using BitNami-3.3.2-0 on Ubuntu 12.04. I've been using WordPress MU Domain Mapping to map the Sapori Bistro domain to my WordPress site.
Does anyone know what might be the problem?