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0x80070043SystemMedium

Error 0x80070043 — Bad Network Name (ERROR_BAD_NET_NAME) | Windows System Error Fix

Windows 11Windows 10Windows Server 2022Windows 8.1

What Does 0x80070043 Mean?

The network name cannot be found. The specified share name does not exist on the target server.

Real-World Causes

  1. 1Share name is misspelled in the UNC path
  2. 2Share was removed from the server
  3. 3Server name cannot be resolved by DNS or NetBIOS
  4. 4Target computer does not have File and Printer Sharing enabled

Symptoms

  • ⚠Cannot connect to \\server\sharename
  • ⚠Mapping a network drive fails
  • ⚠Net use command returns 'network name not found'
  • ⚠File Explorer shows error accessing network location

DIY Fix

Beginner-friendly steps you can try at home

  1. 1Verify the share name is correct by browsing \\servername in File Explorer
  2. 2Check that the share exists on the server: 'net share' on the server
  3. 3Verify server name resolves: 'ping servername'
  4. 4Enable File and Printer Sharing on the target computer

Advanced Fix

For experienced users and IT professionals

  1. 1Check DNS resolution: 'nslookup servername'
  2. 2Try accessing by IP address: \\192.168.x.x\sharename to rule out name resolution issues

Frequently Asked Questions

How do I find the correct share name?
On the server, open File Explorer, right-click the shared folder > Properties > Sharing tab to see the exact share name. Alternatively, run 'net share' in Command Prompt on the server to list all shares.

Related Error Codes

0x80070035Bad Network Path (ERROR_BAD_NETPATH)0x80070040Network Name Deleted (ERROR_NETNAME_DELETED)

About the Author

Windows Troubleshooting Team

Verified against official Microsoft documentation and real-world diagnostic data. Error behavior confirmed across Windows 10, Windows 11, and Windows Server.