Recently, I had to troubleshoot an issue where users moving between floors with different subnets/vlans were not getting the correct LAN IP address (i.e. first floor was 192.168.1.0/24 and second was 192.168.2.0/24). Verified the network devices had IP Helpers, even temporarily disabled DHCP failover (2012R2+ feature) to rule that out - nothing. Whenever the machine … Continue reading Why you should never use Microsoft DHCP SuperScopes