We are experiencing a problem with converting our Server 2008 r2 to an AD domain controller.<\/p>\n
Previously:
\n1 Windows Server 2003, running Active Directory, DNS, DHCP for the LAN.
\n1 Server 2008 r2 running Voicemail, Print, E-mail servers only.
\nThis setup worked fine.<\/p>\n
Now:<\/p>\n
We installed active directory on the new server, updated the 2003 server to be compatible, and thus have 2 Domain Controllers for the domain.
\nNew server experiences a problem where it randomly begins having DNS issue which prevent it from resolving our Local Network name, or being able to be browse any web pages. This disables all of our voicemail, printing, and emailing for the whole office until we get it connected to our network name again. However, internet access and local network access for all office users is uninterrupted.
\nProblem is temporarily remedied by restarting the computer, changing LAC settings to obtain ip\/dns automatically and then changing back to static ip settings, or just disabling the adapter and re-enabling it. Sometimes a combination of all these is needed to get the server to communicate with our network properly again and restore services.
\nThe DNS Server Role WAS installed on the new server but in attempts to isolate the problem we uninstalled it, and the problem still occurs. DHCP is not installed on the new server either, only AD, voicemail, print, email.<\/p>\n
The Internet configurations:<\/p>\n
old server: Primary DNS server is itself, with the DNS server service configured to forward DNS requests to external openDNS servers.<\/p>\n
new server: Primary DNS server IP is the OLD server, the same configuration used on all computers in our office which works fine for all except this server.<\/p>\n
Again, the connection could work for hours or sometimes days before randomly breaking and then having to go through these steps to fix it. Any help would be GREATLY appreciated, as we simply don’t know what is wrong with the configuration.<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"inline_featured_image":false,"iawp_total_views":123},"question-category":[73],"question_tags":[],"class_list":["post-6171","question","type-question","status-publish","hentry","question-category-windows-2008"],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/computing.net\/answers\/wp-json\/wp\/v2\/question\/6171","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/computing.net\/answers\/wp-json\/wp\/v2\/question"}],"about":[{"href":"https:\/\/computing.net\/answers\/wp-json\/wp\/v2\/types\/question"}],"author":[{"embeddable":true,"href":"https:\/\/computing.net\/answers\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/computing.net\/answers\/wp-json\/wp\/v2\/comments?post=6171"}],"wp:attachment":[{"href":"https:\/\/computing.net\/answers\/wp-json\/wp\/v2\/media?parent=6171"}],"wp:term":[{"taxonomy":"question-category","embeddable":true,"href":"https:\/\/computing.net\/answers\/wp-json\/wp\/v2\/question-category?post=6171"},{"taxonomy":"question_tags","embeddable":true,"href":"https:\/\/computing.net\/answers\/wp-json\/wp\/v2\/question_tags?post=6171"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}