Thank you for your message. I am sorry you are having this problem.
If you are getting this every time, there are several possible reasons. Here are some things to try:
If you are running windows, reset the windows firewall to the default configuration.
Try using an alternative browser. If that works, it is likely a browser extension that is interfering.
If you are using a VPN, try using without a VPN.
Try an alternative network connexion. For example, if you are connected to a home network, try connecting to your phone as a wifi hotspot. This can help determine if it is a network issue.