Poweredge OME Ansible DNS issue

Hi,

I have a weird problem that I'm hoping has an easy solution I"m not seeing.
I have 80 poweredge servers that I'm using the OME Ansible modules with.
Out of those 80 servers 3 of them do not allow me to connect to the iDRAC via the Ansible modules by using the DNS name of the iDRAC.  The IP address works no problem.
With those 3 servers, I'm able to:

• ping the iDRAC using the DNS name
• ssh to the iDRAC using the DNS name
• go to the Web UI using the DNS name.

However, for some reason, I get the following error using the Ansible Module:

changed: [idrac16.prod.int -> jumphost.prod.int]
fatal: [idrac18.prod.int -> jumphost.prod.int]: FAILED! => {"ansible_job_id": "568485823367.2834900", "changed": false, "finished": 1, "msg": "Unable to communicate with iDRAC iloidrac18.prod.int. This may be due to one of the following: Incorrect username or password, unreachable iDRAC IP or a failure in TLS/SSL handshake."}
changed: [idrac17.prod.int -> jumphost.prod.int]
fatal: [esx19 -> jumphost]: FAILED! => {"ansible_job_id": "921771635463.2836497", "changed": false, "finished": 1, "msg": "Unable to communicate with iDRAC iloidrac19.prod.int. This may be due to one of the following: Incorrect username or password, unreachable iDRAC IP or a failure in TLS/SSL handshake."}
fatal: [idrac20.prod.int -> jumphost.prod.int]: FAILED! => {"ansible_job_id": "540443383173.2837443", "changed": false, "finished": 1, "msg": "Unable to communicate with iDRAC iloidrac20.prod.int. This may be due to one of the following: Incorrect username or password, unreachable iDRAC IP or a failure in TLS/SSL handshake."}

 As you can see from this example, 16 and 17 work but 18-20 do not.
Thanks for any help on figuring this out.  I know its got to be something I'm missing.

thanks.
glenn.