Internet connection drops when primary Domain controller restarted

Hi, I will check and fix DNS issue .I have 10 years of experience in Linux servers as well as windows server and services such as cPanel/WHM,DNS Plesk, Virtualmin LAMP Stack, Tomcat, Mysql/Mairadb, Zimbra, Postfix mail server,mailenable ,smarter mail,MSSQL,etc. alongwith cloud providers such AWS, GCP, DigitalOcean, Rackspace, Hostgator, Bluehost, Dreamhost. Please discuss. Thank you

Hello, I'm a network and security engineer, Certified CCNA R&S, CCNP Enterprise Core, NSE4 (Fortigate), F5-CA(101-201) And PCNSE (Paloalto). i can help you to solve your problem with DNS, please feel free to contact me for more details. Thanks

Senior Systems Administrator here I may solve your problem and help you understand why you got it and deliver a good troubleshoot document with all the steps to accomplish and solve the problem

IT professional with a strong background in administration and management of computer systems, databases, analysis and implementation of software, systems and network virtualization, combined with 20 years’ experience. Proven in developing solutions that improve efficiency of IT and business operations. Innovative and willing to provide cutting-edge technology and business solutions, using detailed research techniques for problem solving and analytical skills to design and develop appropriate systems I worked in banking and finance as a support analyst, where my clients were the technology personnel and the business units, for more than 10 years I was able to handle an infinite number of situations always guaranteeing the satisfaction of the clients. Part of the IT work is to monitor the infrastructure of IT services to ensure the operation of the business units, I develop different monitoring screens as well as alerts script to ensure an effective and proactive response time

Hi, I'm curious what the issue could be. I have rich experiences in these areas. Let's do a quick remote session to understand the environment - then I can work on it. Payment for sure only if the problem was solved. Cheers, Christof

Hi, I think it is probably because your domain controller also hosts the dns server that is advertised to the clients in your network. Should be a straigthforward fix, some configuring and testing may proof my theory. I do not have any fancy credentials/stories, but this response is handwritten, so that should even the playing field. :) If you are available for a quick call we'll have it settled in no-time. There is not much of a difference timezone wise, should be efficient.