Hi,
Thank you for sharing your question. I understand how frustrating it must be to see the 0x800704cf error repeatedly, especially when your Microsoft account works perfectly on the web but not in the Store.
It can be discouraging when something as basic as signing into the Store suddenly stops working for weeks, especially if you need apps or updates urgently.
This error typically appears when Windows believes the device isn’t connected to the internet, even though your internet works normally. It is most commonly caused by network misconfigurations, VPN or proxy interference, incorrect TCP/IP settings, or corrupted Microsoft Store components. [thewindowsclub.com]
A reliable way to resolve this is by checking and repairing your network configuration. You can start by running the Windows Store Apps troubleshooter and the Network troubleshooter, which automatically detect and fix issues that may block sign‑ins.
If the issue persists, resetting the network stack often helps. You can do this by running the commands netsh winsock reset and netsh int ip reset in an elevated Command Prompt, then restarting your PC.
Since Store‑specific corruption can also trigger this error, repairing or resetting the Microsoft Store app through Settings > Apps > Advanced Options may also restore proper sign‑in.
I hope this helps.
Best Regards,
Noel