DNS Reservation error: The Unique Identifier you have entered may not be correct. Do you want to use this Identifier anyway?

This is more of an annoyance than an actual issue.

At the time of DNS reservation, I found this error when I am providing perfectly valid MAC address and IP address.

It turns out this is nothing but Windows telling you that it doesn’t like the colon (:) in the MAC address. Removing colons like below get things working perfectly.

 

Thanks,

Arun.P.C

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5 thoughts on “DNS Reservation error: The Unique Identifier you have entered may not be correct. Do you want to use this Identifier anyway?

Add yours

  1. Do not use copy/paste for the MAC address. furthermore, use only lowercase (bad: 2C413814CA1A) (good: 2c413814ca1a). This will fix the problem.

  2. I must express my passion for your kindness supporting people who absolutely need guidance on your subject. Your personal commitment to getting the solution all over had become remarkably valuable and has usually enabled professionals just like me to reach their desired goals. Your new helpful help denotes a lot to me and substantially more to my office workers. Thank you; from each one of us.

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