I have a 3 node NUC cluster that I just upgraded from 1.0.3 to 1.1.1. I'm having really strange networking issues. The NUC's only have 1 NIC which is bound to the mgmt net and I had L2VlanNetworks configured for the VM Networks (which were backed by the mgmt cluster network). VM's can get an IP via DHCP, but can't ping the default gateway nor access the internet. But I can SSH into them from a device on another vlan on my network. If I create an untagged network, the VMs have full net access. Anyone having similar experience?

It would be better to show more details like the IP of VMs, the IP of the default gateway, the VLAN ID, etc. That information will help build the topology and analyse the networking issue.