How to Fix Fix Error 0x80070036 — Network Share Nested Too Deeply on Windows
Getting error 0x80070036 when accessing network shares or mapped drives? "The network name was deleted" or nested share path too deep? Fix this SMB network error.
Symptoms
You might be experiencing this problem if you notice:
- •Accessing network shares fails with error 0x80070036
- •Mapped drives become inaccessible with this error code
- •File copy to network location fails mid-transfer
- •DFS namespace paths return 0x80070036
- •Error when browsing deeply nested shared folders
- •Network drives show red X with this error intermittently
Common Causes
- ⚠SMB connection dropped during file operation
- ⚠Network share path exceeds maximum nesting depth
- ⚠DFS referral chain too long or broken
- ⚠SMB session timeout during large file transfers
- ⚠Network instability causing connection resets
- ⚠Antivirus scanning network files causing timeout
Solutions
Solution 1: Fix SMB Connection Settings
- 1CMD as Admin:
- 2Increase SMB session timeout:
- 3Set-SmbClientConfiguration -SessionTimeout 120 -Confirm:$false
- 4PowerShell: Set-SmbClientConfiguration -KeepConn 600 -Confirm:$false
- 5Disable SMB signing if not required by policy:
- 6Set-SmbClientConfiguration -RequireSecuritySignature $false -Confirm:$false
- 7Enable large MTU for better throughput:
- 8Set-SmbClientConfiguration -EnableLargeMtu $true -Confirm:$false
- 9Restart Workstation service: net stop workstation && net start workstation
Solution 2: Remap Network Drives
- 1Remove and recreate the mapped drive:
- 2net use Z: /delete (replace Z: with your drive letter)
- 3net use Z: \\server\share /persistent:yes
- 4If path is deeply nested: map directly to the subfolder
- 5Example: net use Z: \\server\share\dept\team instead of navigating there
- 6For DFS paths: use the direct server path instead of DFS namespace
- 7Check with: nslookup <dfs-namespace> to find actual server
- 8Restart File Explorer after remapping
Solution 3: Network and Driver Fixes
- 1Update network adapter driver from manufacturer website
- 2Disable offloading features that can cause drops:
- 3Device Manager → Network adapter → Properties → Advanced
- 4Disable "Large Send Offload v2 (IPv4)" and "(IPv6)"
- 5Disable "TCP Checksum Offload"
- 6Temporarily disable antivirus real-time scanning for network drives
- 7If on WiFi: switch to wired connection for large transfers
- 8Check Event Viewer → System for network disconnection events
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