Network Sharing Troubleshooting Guide

Network shares not working? Can’t see other computers? Here’s how to fix common Windows sharing issues.

Quick Checklist

• Network set to Private
• File and Printer Sharing enabled
• Same workgroup (for legacy)
• Same subnet
• Firewall allows SMB

Enable File Sharing

# Enable via PowerShell (Admin)
Enable-NetFirewallRule -Name "FileAndPrinterSharing-SMB-In"
Enable-NetFirewallRule -Name "FileAndPrinterSharing-In"
Enable-NetFirewallRule -Name "FileAndPrinterSharing-llmnr-In"

# Enable sharing
Set-SmbServerConfiguration -EnableSMB1Protocol $false -Force
Set-SmbServerConfiguration -RequireSecuritySignature $false -Force

Create a Share

# Create folder
New-Item -ItemType Directory -Path "C:\Shared"

# Share it
New-SmbShare -Name "Shared" -Path "C:\Shared" -FullAccess "Everyone"

# Or use NTFS permissions
$ACL = Get-Acl "C:\Shared"
$AccessRule = New-Object System.Security.AccessControl.FileSystemAccessRule("DOMAIN\Users","FullControl","ContainerInherit,ObjectInherit","None","Allow")
$ACL.SetAccessRule($AccessRule)
Set-Acl "C:\Shared" $ACL

Access a Share

# Map drive
New-PSDrive -Name "S" -PSProvider FileSystem - "\\ServerName\ShareName"

# Test connection
Test-Path "\\ServerName\ShareName"

# View shares on server
Get-SmbShare -CimSession ServerName

Fix “Access Denied”

# Check share permissions
Get-SmbShareAccess -Name "ShareName"

# Reset permissions
Grant-SmbShareAccess -Name "ShareName" -AccountName "Everyone" -AccessRight Full -Force

SMB Version Issues

# Check SMB versions enabled
Get-SmbServerConfiguration

# Enable SMBv2 (if needed)
Set-SmbServerConfiguration -EnableSMB2Protocol $true

# Disable SMBv1 (security!)
Set-SmbServerConfiguration -EnableSMB1Protocol $false

Network Discovery Not Working

# Enable network discovery
Set-NetFirewallProfile -Profile Private -Enabled True
Get-BrowserManager | Enable 2>/dev/null # or

# Enable these services:
Start-Service -Name "fdPHost"
Start-Service -Name "Browser"
Start-Service -Name "LanmanServer"
Start-Service -Name "LanmanWorkstation"

Common Error Codes

Wrap-Up

Most sharing issues are firewall or permission-related. Check those first, then SMB versions.

Questions? Drop them below!