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The default is 7MB, which would be equal to 1MB per day.This registry setting needs to be tuned to your specific environment.

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It sometimes takes a few refreshes (spamming F5) to get the DHCP scopes list to sort and load properly.I’ve been involved in setting up some very large Windows DHCP deployments during my time working as a Consultant at Long View Systems.Along the way I’ve found some interesting challenges and caveats of using Windows DHCP, especially so anytime your working with DHCP enabled dynamic DNS updates.Again, this needs to be tuned specifically for the server.This is a new registry tune (not enabled by default) that was introduced in Windows Server 2016 and patched for Windows 2012 R2 in Monthly Quality Rollup for Windows Server 2012 R2 (KB3197875).However I have personally found increasing this value to be beneficial.Especially on higher volume DHCP servers that are doing a lot of dynamic DNS updates (wireless client or low lease duration scopes).I found myself making Powershell scripts to make mass-changes much easier and less vulnerable to human error due to the very repetitive nature of the default GUI.I found a small issue with sorting when you have a large number of scopes in the DHCP administration GUI.This helps keep the DNS registration queue small by only attempting registration once, instead of attempting 3 consecutive retries by default.In my experience the retires almost always fail as well which ends up clogging up the DNS registration queue.

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