I'm running a Wordpress Multisite where I've installed a few programs (WHMCS, Integrator 3, etc.) on subdomains. These domains are not related to the WordPress Multisite directory, yet they do communicate with the WordPress installation through a few plugins.
Everything worked fine, but then I wanted to force SSL upon all subdomains. So I purchased a Wildcard SSL.
The SSL connection works great on the website itself. However, not on the subdomains.
The subdomains always tend to go back to the main domain.
WPMU example, a registered WPMU subdomain at the main domain doesn't redirect to the main domain:
https://hmptemplate.hostmijnpagina.nl/ - This works perfectly.
Reseller example, this website has its own WordPress installation:
http://dutchslayers.hostmijnpagina.nl works (www.dutchslayers.nl).
But https://dutchslayers.hostmijnpagina.nl redirects to the WPMU registration page (https://hostmijnpagina.nl/wp-signup.php?new=dutchslayers)
The same goes for WHMCS, whereas http://portaal.hostmijnpagina.nl works as intended, but https://portaal.hostmijnpagina.nl redirects to the WPMU home page (This is temporarily the local .htaccess' fault, but it will try to go to the registration page if the file is changed or removed).
I'm using WHM/cPanel on a dedicated server with my own nameservers. So I pretty much have access to anything and on the fly.
Any idea's? Thanks!