Fix 0XC00000CF STATUS_SHARING_PAUSED Error Fast

Cause 1: SMB Service Crashed or Hung

This is the most common culprit. The Server service (lanmanserver) or the Workstation service (lanmanworkstation) gets stuck — usually after a heavy file copy, a VPN disconnect, or a failed Windows update. The error 0XC00000CF pops up when you try to access a network share, a mapped drive, or even a local folder shared via SMB.

Don't bother rebooting the whole machine. Just restart the services. Open an admin Command Prompt or PowerShell and run:

net stop lanmanserver && net start lanmanserver
net stop lanmanworkstation && net start lanmanworkstation

If the services won't stop cleanly (they sometimes hang), use sc queryex lanmanserver to find the PID, then taskkill /PID [PID] /F. Then start them again. I've seen this fix 0XC00000CF on Windows 10, 11, Server 2016, and Server 2022.

After restarting, test your share. If it works, you're done. If not, move to Cause 2.

Cause 2: Stale or Corrupted Mapped Drive

Mapped drives get lazy. Windows caches the connection, and when the remote server pauses the share (or the network blips), the local mapping goes stale. The error appears as a red 'X' on the drive in File Explorer, or you get 0XC00000CF when you double-click it.

Skip the 'disconnect and reconnect' dance from the GUI — it rarely works cleanly. Instead, remove the mapping from command line:

net use Z: /delete

Replace Z: with your mapped drive letter. Then remap it fresh:

net use Z: \\server\share /persistent:yes

If the drive letter is already in use by a different share, run net use without arguments to see all mappings, then delete the stale one. I've had clients with 8 mapped drives where only one was broken — this command isolates it cleanly.

If you still get the error, check if the remote server actually paused the share on its end. Log into the server, open Computer Management > Shared Folders > Shares. If the share shows 'Paused', right-click and select 'Stop Sharing' then reshare it. That's rare, but it happens after a server-side SMB pause.

Cause 3: IPv6 or Network Profile Glitch

Less common, but I've seen this on Windows 10 21H2 and Windows 11 22H2. Sometimes Windows decides your network is 'Public' when it should be 'Private', and SMB sharing gets paused as a security throttle. Other times, IPv6 link-local addresses interfere with the SMB session.

First, check your network profile. Go to Settings > Network & Internet > Wi-Fi (or Ethernet) > Properties. Set it to 'Private' if it's on 'Public'. Then reboot the network adapter: ipconfig /release && ipconfig /renew from an admin command prompt.

If that doesn't help, disable IPv6 on the adapter temporarily. Open Network Connections (ncpa.cpl), right-click your adapter, Properties, uncheck 'Internet Protocol Version 6 (TCP/IPv6)', click OK. Test the share. If it works, IPv6 was the problem — you can leave it off, or re-enable it later after a full network reset.

I've also seen third-party firewalls (McAfee, Norton) pause SMB traffic. Disable them for 30 seconds and test. If the error goes away, add an exception for SMB (port 445) in the firewall settings.

Quick-Reference Summary Table