MS DNS issue

Hi guys, could you please help me?

I have an issue with the following:

Let's say I have:
- server COMP1 (%computername% command shows this word)
- domain name myhost.com, hosted on COMP1 server
- primary nameserver ns1.myhost.net

When I add sites with 2nd level domain (e.g. myhost.com) with HELM, it works just great.

When I add sites with 3nd level domain (e.g. site.myhost.com) with HELM, it does not work.
site.myhost.com site is created in IIS.
site.myhost.com DNS zone exists.
myhost.com DNS zone exists.
There is a gray folder (delegation zone) 'site' in myhost.com DNS zone, there is 1 NS record and there is an error in this NS record:
Server FQDN: COMP1
IP Address: Unknown

If I edit this NS record and set:
Server FQDN: ns1.myhost.net
IP Address: <IP of ns1.myhost.net here>
then all works fine.

Is it a HELM error or MS DNS error? How can I fix it?

Thank you!

 

 

 

 

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