I tried to connect to the game sevaral times but it shows server down error. please give me a solution.
Hey, sm3002!
Welcome to the forums, sorry to hear that you are not able to connect.
For connection difficulties, please perform connectivity troubleshooting in order to optimize the online connectivity. Please review the below article:
https://support.ubisoft.com/faqs/000056613
If you continue to encounter problems connecting to online services, please provide us an update with the resolution of troubleshooting, as well as any error codes you encounter.
Thank you.