Revert TacticalRMM download changes - AV interference confirmed

Rolling back to pre-session state (d0fa18f). Download failures were caused
by antivirus SSL inspection, not the script. Restore original
Test-NetConnection flow while AV exclusion is sorted out.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

1-estudio-Install-TacticalRMM-and-RustDesk.ps1

@@ -175,25 +175,36 @@ If (Get-Service $serviceName -ErrorAction SilentlyContinue) {
     Catch { # pass
     }
 
-    Try {
-        Write-Host "Downloading TacticalRMM agent..."
-        Start-BitsTransfer -Source $downloadlink -Destination "$OutPath\$output" -ErrorAction Stop
-        Write-Host "Download complete."
-        Start-Process -FilePath "$OutPath\$output" -ArgumentList '/VERYSILENT /SUPPRESSMSGBOXES' -Wait
-        Write-Host "Extracting..."
+    $X = 0
+    do {
+        Write-Output "Waiting for network"
         Start-Sleep -s 5
-        Start-Process -FilePath "C:\Program Files\TacticalAgent\tacticalrmm.exe" -ArgumentList $installArgs -Wait
+        $X += 1
+    } until (($connectresult = Test-NetConnection $apilink[2] -Port 443 | Where-Object { $_.TcpTestSucceeded }) -or $X -eq 3)
 
-        # ── Install RustDesk after Tactical RMM ──
-        Install-RustDesk
+    if ($connectresult.TcpTestSucceeded -eq $true) {
+        Try {
+            Invoke-WebRequest -Uri $downloadlink -OutFile "$OutPath\$output"
+            Start-Process -FilePath "$OutPath\$output" -ArgumentList '/VERYSILENT /SUPPRESSMSGBOXES' -Wait
+            Write-Host "Extracting..."
+            Start-Sleep -s 5
+            Start-Process -FilePath "C:\Program Files\TacticalAgent\tacticalrmm.exe" -ArgumentList $installArgs -Wait
 
-        exit 0
-    }
-    Catch {
-        Write-Warning "TacticalRMM install failed: $($_.Exception.Message)"
-        exit 1
-    }
-    Finally {
-        if (Test-Path "$OutPath\$output") { Remove-Item -Path "$OutPath\$output" -Force }
+            # ── Install RustDesk after Tactical RMM ──
+            Install-RustDesk
+
+            exit 0
+        }
+        Catch {
+            $ErrorMessage = $_.Exception.Message
+            $FailedItem   = $_.Exception.ItemName
+            Write-Error -Message "$ErrorMessage $FailedItem"
+            exit 1
+        }
+        Finally {
+            if (Test-Path "$OutPath\$output") { Remove-Item -Path "$OutPath\$output" -Force }
+        }
+    } else {
+        Write-Output "Unable to connect to server"
     }
 }