Hi @xin9292, thank you for the additional information and thanks for testing @Waqqas. If you’re the only one experiencing this issue then it almost looks like your IP might be blocked but over multiple websites that would be quite exceptional. Can you still reach the websites through your mobile phone for example? The solution would be to either use a VPN service (which costs money) or you could try disconnecting the modem for 24 hours. This will force a network reset in some cases which results in a new external IP which might solve the issue. This is not a 100% waterproof solution though but it might be worth a shot.