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0x800704C3: ERROR_SESSION_CREDENTIAL_CONFLICT (Win32 1219)

Windows Error Code Lookup: Decode Windows error codes: Win32, HRESULT (0x80070005), NTSTATUS, Windows Update, msiexec and blue-screen stop codes, with what to check next.

Paste the number from an error dialog, event log, script or setup log: 0x80070005, 80070005, -2147024891, 1603, 0xC0000005, a stop code like 0x7E, a name like E_ACCESSDENIED, or a few words. You get every way Windows could mean that number (an HRESULT often wraps a Win32 error, so 0x80070005 is "Access is denied" too), its parts decoded, and what to check for the common ones. Names and messages come from the Windows SDK headers and Windows' own message tables; see Microsoft's System Error Codes and [MS-ERREF] for the full references.

Try: 0x80070005, 1603, 0xC0000005, 0x800F081F, 0x8024402C, 0x7E, access denied

0x800704C3 = 2,147,943,619 = -2147023677

HRESULT 0x800704C3

No name of its own: it's the Win32 error below, as an HRESULT.

You already have a connection to that server under a different account. Remove it (net use \\server\share /delete) or connect by IP address or another name.

Wraps the Win32 error: 1219ERROR_SESSION_CREDENTIAL_CONFLICT: Multiple connections to a server or shared resource by the same user, using more than one user name, are not allowed. Disconnect all previous connections to the server or shared resource and try again.

Severity (bit 31)1: failure
Customer (bit 29)0: Microsoft
NTSTATUS inside (bit 28)0
Facility7 (0x007) WIN32
Code1219 (0x04C3)