We created a new sub-domain (via A record) but it is not resolving for everyone. It's been working for me and some others for about a week, but others still cannot access the site. I don't think this is a propagation issue as we created the entry about a week ago. I've been able to ping and resolve the domain from various machines/networks/operating systems/ISP's, but some others cannot.
I've already had the people who cannot resolve the domain name flush their DNS, but with no effect. They can access the site directly via the IP but not the domain name.
This A record is pointing to a different server than the main domain. The registrar is Network Solutions, the host is Media Temple (dv).
Thanks in advance.
Edit: The domain is testing.nicpartnersinc.com
. Also, the host is brand spankin' new and this is the first and only domain created on it.
Edit 2:
From location that can resolve domain
$ dig testing.nicpartners.com +trace
; <<>> DiG 9.4.3-P1 <<>> testing.nicpartners.com +trace
;; global options: printcmd
. 355205 IN NS j.root-servers.net.
. 355205 IN NS g.root-servers.net.
. 355205 IN NS m.root-servers.net.
. 355205 IN NS c.root-servers.net.
. 355205 IN NS h.root-servers.net.
. 355205 IN NS i.root-servers.net.
. 355205 IN NS a.root-servers.net.
. 355205 IN NS k.root-servers.net.
. 355205 IN NS d.root-servers.net.
. 355205 IN NS e.root-servers.net.
. 355205 IN NS f.root-servers.net.
. 355205 IN NS l.root-servers.net.
. 355205 IN NS b.root-servers.net.
;; Received 488 bytes from 71.9.127.107#53(71.9.127.107) in 44 ms
com. 172800 IN NS B.GTLD-SERVERS.NET.
com. 172800 IN NS F.GTLD-SERVERS.NET.
com. 172800 IN NS A.GTLD-SERVERS.NET.
com. 172800 IN NS I.GTLD-SERVERS.NET.
com. 172800 IN NS K.GTLD-SERVERS.NET.
com. 172800 IN NS L.GTLD-SERVERS.NET.
com. 172800 IN NS J.GTLD-SERVERS.NET.
com. 172800 IN NS H.GTLD-SERVERS.NET.
com. 172800 IN NS M.GTLD-SERVERS.NET.
com. 172800 IN NS D.GTLD-SERVERS.NET.
com. 172800 IN NS G.GTLD-SERVERS.NET.
com. 172800 IN NS C.GTLD-SERVERS.NET.
com. 172800 IN NS E.GTLD-SERVERS.NET.
;; Received 501 bytes from 192.5.5.241#53(f.root-servers.net) in 45 ms
nicpartners.com. 172800 IN NS ns.compuone.com.
nicpartners.com. 172800 IN NS ns1.compuone.com.
nicpartners.com. 172800 IN NS ns2.compuone.com.
;; Received 151 bytes from 192.12.94.30#53(E.GTLD-SERVERS.NET) in 222 ms
nicpartners.com. 90000 IN SOA ns.compuone.com. admin.compuone.com. 31 900 600 86400 3600
;; Received 110 bytes from 206.71.164.187#53(ns.compuone.com) in 35 ms