Cannot resolve domain

Everyone will need a little bit more information to assist you. let's start with some basic details.

what are you trying to accomplish? what does the certificate have to do with the situation? what DNS name or IP are you trying to ping?

I won't be able to answer over the weekend but here are some things needed to clarify to better advise:
1. What type of domain? Assuming Internet domain but needs clarified because you can name your Windows domain the same as an Internet domain.
2. From where; anywhere, within your Windows network which has the same domain name?
3. What type of server / service are you trying to ping?
4. Has it been pingable in the past?
5. Is the service(s) it provides still working but you cannot ping or ... ?

Just a few things to start off ...

trying to ping companyname.com
hosted by godaddy.com
it was hosted my email myname@companyname.com
now I can send but cannot receive anymore.  bouncing back.. cannot resolvle nslookup either.
email hosted outlook.office365.com

if you can resolve dns from the server 8.8.8.8 but not your internal dns server the problem could be your internal dns resolver.

Public DNS.  Something happened to that domain.  *** google-public-dns-a.google.com can't find www.companyname.com: Server failed
DNS request timed out.
    timeout was 2 seconds.
DNS request timed out.
    timeout was 2 seconds.
DNS request timed out.
    timeout was 2 seconds.
DNS request timed out.
    timeout was 2 seconds.
Non accessible.  Website was on that domain that is non-accessible either.  Not sure what happened.  Website was hosted on that domain.
This is for external domain nothing to do with internal.

nada!  non-existent domain.
a little difference when I try to ping that domain it takes like 10sec.  trying to resolve something I think.  when I try to ping completely bogus stuff like... ping aodfhhhghouihsfdaghoi.com it comes immediately with Ping request could not find host

That's what I am thinking.  
omain Name: comanychangedname.COM
   Registry Domain ID: somenumber_DOMAIN_COM-VRSN
   Registrar WHOIS Server: whois.godaddy.com
   Registrar URL: http://www.godaddy.com
   Updated Date: 2018-04-23T18:29:38Z
   Creation Date: 2015-06-20T23:47:23Z
   Registry Expiry Date: 2019-06-20T23:47:23Z
   Registrar: GoDaddy.com, LLC
   Registrar IANA ID: 146
   Registrar Abuse Contact Email: abuse@godaddy.com
   Registrar Abuse Contact Phone: 480-624-2505
   Domain Status: clientDeleteProhibited https://icann.org/epp#clientDeleteProhibited
   Domain Status: clientRenewProhibited https://icann.org/epp#clientRenewProhibited
   Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
   Domain Status: clientUpdateProhibited https://icann.org/epp#clientUpdateProhibited
   Name Server: ANDY.NS.CLOUDFLARE.COM
   Name Server: JUNE.NS.CLOUDFLARE.COM
   DNSSEC: unsigned

Yes, DNS servers seems OK.  Can ping and resolve by name.   Let me find logins to the godaddy.  I am not the primary account owner there.
Thanks gents!

Were you able to resolve your issue?

sorry for the delay. Looks like things getting better.  Possibly registrar is trying to recover..

C:\>nslookup -type=soa domainname.com
Server:  UnKnown
Address:  192.168.1.1

Non-authoritative answer:
domainname.com
        primary name server = ns67.domaincontrol.com
        responsible mail addr = dns.jomax.net
        serial  = 2018070300
        refresh = 28800 (8 hours)
        retry   = 7200 (2 hours)
        expire  = 604800 (7 days)
        default TTL = 600 (10 mins)

well, I'm glad things are getting sorted out.


cheers

thanks bunch!