Troubleshooting Posted on by Webmaster IT Support Forum › Forums › Active Directory › DHCP › Troubleshooting This forum has 3 topics, and was last updated 1 year, 6 months ago by Webmaster. Viewing 3 topics - 1 through 3 (of 3 total) Topic Voices Posts Last Post The Authorization Of DHCP Server Failed With Error Code 5 Access Is Denied Started by: Webmaster 1 1 1 year, 6 months ago Webmaster The Name Specified In Network Control Block (NCB) Is In Use On A Remote Adapter Started by: Webmaster 1 1 7 years, 4 months ago Webmaster The IP Address Is Not A Valid DNS Address Do You Still Want To Add It? Started by: Webmaster 1 1 8 years, 5 months ago Webmaster Viewing 3 topics - 1 through 3 (of 3 total) You must be logged in to create new topics. Log In Username: Password: Keep me signed in Log In