A Unity ID allows you to buy and/or subscribe to Unity products and services, shop in the Asset Store and participate in the Unity community.
Separate names with a comma.
If it's with wifi network you can just change up your code, just put in IPv4, it's your localIP, you can do the other things like internet ones.
The video is server view [MEDIA] So I've tried TCP/UDP/UNET(2017) and every single one of them show the same problem of a lag spike from time to...
Why should it be? You can just script connecting on some UI element in main menu or something.