Hey @fonggigi,
Welcome to the community and thanks for taking the time to post your issue on the forums.
I'm really sorry to hear of the issues that you're having at the moment, I have looked into this and cannot see anything that would be causing these issues, I checked your connection and the local area to be sure and cannot find any problems.
Have you been able to check via a wired connection as some of the members suggested?
Regards,
Steven_L