Creating Standalone root and Enterprise Subordinate

Good day:
I created a standalone root CA but when i tried creating the enterprise subordinate i get a message that the root ca could not be contacted. The standalone root CA is configured as a workgroup and the subordinate ca is a domain member. They are both on the same subnet and can ping each other. I am new to this, so i really do not know what to do next.
Thanks.
I created a standalone root CA but when i tried creating the enterprise subordinate i get a message that the root ca could not be contacted. The standalone root CA is configured as a workgroup and the subordinate ca is a domain member. They are both on the same subnet and can ping each other. I am new to this, so i really do not know what to do next.
Thanks.
Comments
How do they contact each other, with DNS? Are they using the same internal DNS server?
Yes the Root CA is online
I tried this and it worked. I however got a message saying that the root CA is untrusted.
when i saw the message i immediately knew that there was a problem and i am trying to get it fixed. Just started with a list of what would make it untrusted in the first place and work my way up from there.