How to fix NSLookup error Default Server Unknown in Windows Server 2022, 2019, and 2016

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Professor Robert McMillen is an IT consultant, college professor, has an MBA, over 50 technical certifications and is a Microsoft Certified Trainer (MCT). Now ranked in the top 1% of all YouTube Channels by SocialBlade! "This channel is designed to teach you a technical solution in a few minutes or less. I created this channel for people who don't have time to watch a 30 minute video to find an answer to a complex problem. Get in and out quick with the answers you need!" Check out my book "This is IT" for true IT experiences from my career: https://tinyurl.com/4uza3zan For speaking engagements or product reviews please send email at the business inquiries link below. All videos are here are a guide to help you solve issues, but please do not change any production environments without consulting a professional and having good backups.