JasonRoss wrote:I had this same issue and resolved it. I upgraded from 9 to 9.5, needed to modify a virtual lab, but was getting the error message "vNIC with such isolated Network connected already exists". I tried everything... I still wasn't able to complete the final creation stage with multiple isolated networks. Hope this helps somebody.
It is a simple mistake that I would ALMOST call a design flaw. - From the "Isolated Network" section after you click the Add button for additional networks, the middle "Isolated network" dropbox keeps the same name as the original one. Hence the VLAN ID changing for all of the networks.
Edit the name to match the production network. For example...
Production: xx Network
Isolated network: Virtual Lab xx Network
VLAN ID: xx
After this, assign a vNic for each isolated network with the appropriate network settings. Each masquerade address will need to be unique in the lab.
I owe you a steak. I was stuck on this for a couple of hours. I didn't notice the isolated networks names not being updated when adding the multiple networks and couldn't figure out why I was not able to add multiple vNICS. Thank you sir!
P.S. I would call this a "bug"