In my case this is not caused by Hyper-V's DhcpGuard feature either, because that's turned off for both VMs involved. (Same for RouterGuard.) See: https://social.technet.microsoft.com/Forums/en-US/f03c0c8e-8924-4071-b86e-18fb141e4710/how-to-configure-dhcp-guard-in-hyperv-2012?forum=winserverhyperv
In my case this is not caused by Hyper-V's DhcpGuard feature either, because that's turned off for both VMs involved. (Same for RouterGuard.) See: https:/ /social. technet. microsoft. com/Forums/ en-US/f03c0c8e- 8924-4071- b86e-18fb141e47 10/how- to-configure- dhcp-guard- in-hyperv- 2012?forum= winserverhyperv