Login Failed: Unknown user name or Password error solution, Password error Solution

Login Failed: Unknown user name or Password error solution, Password error Solution

1. Click "Computer start"-"run"

2.  

   Enter the "secpol. msc" command and click "OK.

3.  

   The "Local Security Policy" window is displayed, as shown in. Change the Network Security: LAN Manager Authentication Level from "not defined" to "Send LM and NTLM-if negotiated, use NTLMv2 session security: "and close the" Local Security Policy "window.

4.  

   Let's come back and try again to access the computer in the LAN, enter the IP address of the \ LAN computer, and click "OK.

5.  

   No error is reported this time !!!, Finally, you can log on to the LAN Computer and access the two folders shared by the computer.