Self-signed certificate

I can’t get the DX4000 to issue a self signed certificate. The dashboard wizard only allows to buy a certificate or setup a new domain. If I choose personalized domain name from Microsoft option I am only offered to pick a domain ending in ‘’. I already have my ‘’ domain setup pointed my static IP. All i need is self signed certificate in the name of this domain.

The IIS manager does not open up on double clicking,  upon 'RDP’ing into the dx4000 as an administrator!

It is much easier to simply purchase a cert.  But anyways, IIS Manager should open.  Reboot, check the date, and try IIS again.