Description
Network Connection Status Indicator (NCSI) is the little Network icon on the right side of your Windows Taskbar. It will show a red X when there is no network connection and a yellow triangle when there is No Internet connection.
While browsing and other Internet related functions may still be available (when the yellow triangle is showing), MS Office products, Windows Updates and a few other applications won’t work as long as NCSI thinks there is no Internet.
The script uses the same tests that NCSI uses to determine if an Internet connection is available and displays the results. This can be very useful when troubleshooting NCSI issues.
Copy the code and paste to Notepad, then save as a .ps1
# This app runs the same tests as the Network Connection Status Indicator (NCSI) using WinHTTP, not IE as a proxy.
#
# Open PowerShell and navigate to this script, Run it using ./NCSItest
#
# Any failed tests will show in red text.
cls
Write-host "Any failures will show in red" -ForegroundColor Red
Start-Sleep 1
Write-Host ""
Write-Host "Confirming WinHTTP is not using a proxy" -ForegroundColor Green
Write-Host "WinHTTP should show: " -ForegroundColor Green -NoNewLine;
Write-Host "Direct access (no proxy server)" -ForegroundColor Yellow
Start-Sleep 1
netsh winhttp show proxy
Start-Sleep 1
Write-Host ""
Write-Host "Trying to reach msftconnecttest.com; You should see" -ForegroundColor Green -NoNewLine;
Write-Host " StatusCode: 200" -ForegroundColor Yellow
Start-Sleep 1
Write-Host ""
Invoke-webrequest "http://www.msftconnecttest.com/connecttest.txt"
Start-Sleep 1
Write-Host ""
Write-Host "Trying to resolve dns.msftncsi.com" -ForegroundColor Green
Write-Host ""
Write-Host "Testing Domain Name Resolution..." -ForegroundColor Green
Start-Sleep 1
Write-Host ""
Resolve-DnsName "dns.msftncsi.com"
Write-Host "Does IPV6 = " -ForegroundColor Green -NoNewLine;
Write-Host " fd3e:4f5a:5b81::1" -ForegroundColor Yellow
Write-Host "Does IPV4 = " -ForegroundColor Green -NoNewLine;
Write-Host " 131.107.255.255" -ForegroundColor Yellow
Write-Host""
Write-Host "Network Connection Status Indicator test complete" -ForegroundColor Greenhttps://community.spiceworks.com/scripts/show/4340-network-connection-status-indicator-ncsi-test