Loosing vm connectivity after virsh destroy/start default

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I'm using kvm on RHEL 7.5 My VM's loose network connectivity when I do "virsh net-destroy default" and then "virsh net-start default".
Only when I reboot the kvm server network connectivity is restored to my VM's.
Is this a bug?
Can I avoid having to reboot the kvm server?


I found a solution:

Using the following commands on-the-fly solves the problem without making me restart my kvm host to restore vm guest connectivity as aforementioned.

virsh net-update default add ip-dhcp-range virsh net-update default delete ip-dhcp-range

thx JoshR