I am having a problem when trying to log in on Unity Hub and https://id.unity.com/, searching for a solution I try allowing Unity througth firewall and changing my network to private (it was already in private but I try changing it to public and then private again), none of this solutions worked for me. The only "solution" I found was connecting to my phone network, what is wrong with my home network? Here is a screenshot of the error message.
I hope you can help me, thank you.
I have exactly the same issue on my house network.
In all the machines that I connect I receive this error.
The solution that I found was to use the 4G internet of my Android device on my Laptop, creating a "Mobile Hotspot" (Wifi Point on your Android device) and connect your computer to that Wifi network:
(Disable the Wifi on you Android device, and enable Data Usage -> Mobile Data), make sure you purchased an internet packet for your Android device, or you have montly internet plan.
The problem is something related to the network configuration, so the fastest solution is to use another network just to log in into your Unity account, and then use your network for the rest (Keep your session active as long as possible to avoid doing this again and again).