connection issues

83adw5tgkj6s​ Please make sure to post in English only on the English boards so the wider community and staff can assist more easily.

Tôi bị lỗi quốc gia không vào được 

Hi there, and thanks for reaching out. Could you please share a few more details so we can suggest the most helpful steps for you?

• Platform
• Gamertag/Username
• Timestamp (including timezone)
• Region
• ISP
• Connection type

Have you already tried restarting your PC/Console and your router?