Domain Account gets frequently lockout

1) Remove passwords by clicking on Start => Run => type "rundll32.exe
keymgr.dll, KRShowKeyMgr" and then delete the Domain-related passords;

2) Remove passwords in Internet Explorer => Tools => Internet Options =>
Content => Personal Information => Auto Complete => Clear Passwords;

3) Delete cookies in Internet Explorer => Tools => Internet Options =>
General;

4) Disconnect (note the path before disconnecting) all networks drives,
reboot, then map them again;