Welcome to Microsoft Q&A forum.
Thank you for your sharing. Based on your information, the "No Internet" error you are encountering after the security update is an authentication problem in the Windows security layer. It prevents the login screen from recognizing your connection, leading to the loop you've experienced.
Could you please follow these steps and update me on the outcome?
- Access Safe Mode: On the login screen, hold the Shift key while clicking Power > Restart. Once the menu appears, select Troubleshoot > Advanced options > Startup Settings > Restart. After the reboot, press 5 (or F5) for Safe Mode with Networking.
- Reset the Network: Right-click the Start button and select Command Prompt (Admin) or Terminal (Admin). Type the following commands, pressing Enter after each:
netsh winsock reset netsh int ip reset ipconfig /flushdns - Switch to a Local Account: To prevent this from happening again, go to Settings > Accounts > Your Info and select "Sign in with a local account instead." This allows you to log in without needing an active internet handshake.
Please note that as a moderator, my role is to provide general technical guidance and route you to the appropriate support channels; however, I cannot directly resolve issues specific to external fintech or banking services.
I hope this information is helpful. Please follow these steps and let me know if it works for you. If not, we can work together to resolve this.
Thank you for your patience and your understanding. If you have any questions, please feel free to reach out. I'm looking forward to your reply.