OnApp won't allow me to delete a network, how can I delete it?
All OnApp versions
Please check the IP list for the network via Settings -> Networks menu, and make sure no IP addresses are in use. In use IPs will show a reference to the VM where you can access the VM and remove the IP.
Normally this is caused because there is still a VM with an IP assigned to it from that network. OnApp will not allow networks or network joins to be removed if they are still in use.