Invalid network name?

I tried to create a network in the console, but the network name box turned red and says the name is invalid. Still, it’s not clear why it’s invalid. What is a valid name?

Hi Ken,

Could you please try using “-” or remove “.”
Network name will not accept full stop and it will be invalid with “.”

Minku Jain

How can I learn which characters are allowed? The error message “name is invalid” is not helpful.