I cannot sign into my outlook email

The “outlook.com unexpectedly closed the connection” message indicates that the site connection is failing before sign-in, so first test Microsoft account access on another connection and then run the sign-in helper if access still fails.

1. Separate a connection problem from an account problem

1. Switch to another Internet connection—for example, turn off Wi-Fi and use your phone’s mobile data.
2. Open an InPrivate/Incognito browser window:
   • Edge/Chrome on Windows: Ctrl+Shift+N
   • Most browsers on macOS: Command+Shift+N
3. In that private window, open https://account.microsoft.com/ and try signing in. This alternate-network/private-window test is recommended for a similar “site cannot be found” Outlook.com failure.^1^
4. Interpret the result:
   • Microsoft account opens, but Outlook.com does not: check the Microsoft Service Health Status site. If Outlook is not healthy, wait for service recovery.^2^
   • Neither site works on the original connection, but both work on mobile data: the original network, DNS, proxy, VPN, firewall, or security software is interrupting the connection. Disable any VPN or web-filtering proxy temporarily, or contact the network/Internet provider.
   • You still cannot sign in on the alternate connection: continue below.

2. Run Microsoft’s sign-in recovery tool

Open the Microsoft account sign-in helper, enter the affected Outlook.com/Hotmail/Live address, and follow the prompts. Microsoft directs users who cannot sign in to this tool even when no explicit account-lock notice appears.^3^

Do not share your password, security code, or recovery-form answers with anyone.

3. If Microsoft explicitly says the account is blocked

Use Microsoft’s Unblock my Outlook.com account process. A temporarily blocked account must be unblocked by resetting its password; Microsoft may also require identity verification with a security code.^4^

If the security-code or password-reset process does not restore access, select When you can’t sign in to your Microsoft account from that support page. It provides further recovery guidance and a route to Microsoft Support.

If directed to the account recovery form, use https://account.live.com/acsr from a familiar device and location. That form is only applicable when two-step verification is not enabled.^5^

References

1. how come I can't sign into outlook mail that it can't be found - Microsoft Q&A
2. Fixes or workarounds for recent issues on Outlook.com
3. Can't send or receive email in Outlook.com | Microsoft Support
4. Unblock my Outlook.com account | Microsoft Support
5. My account is blocked - Microsoft Q&A