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

@@ -175,10 +175,16 @@ If (Get-Service $serviceName -ErrorAction SilentlyContinue) {
     Catch { # pass
     }
 
+    $X = 0
+    do {
+        Write-Output "Waiting for network"
+        Start-Sleep -s 5
+        $X += 1
+    } until (($connectresult = Test-NetConnection $apilink[2] -Port 443 | Where-Object { $_.TcpTestSucceeded }) -or $X -eq 3)
+
+    if ($connectresult.TcpTestSucceeded -eq $true) {
         Try {
-        Write-Host "Downloading TacticalRMM agent..."
-        Start-BitsTransfer -Source $downloadlink -Destination "$OutPath\$output" -ErrorAction Stop
-        Write-Host "Download complete."
+            Invoke-WebRequest -Uri $downloadlink -OutFile "$OutPath\$output"
             Start-Process -FilePath "$OutPath\$output" -ArgumentList '/VERYSILENT /SUPPRESSMSGBOXES' -Wait
             Write-Host "Extracting..."
             Start-Sleep -s 5
@@ -190,10 +196,15 @@ If (Get-Service $serviceName -ErrorAction SilentlyContinue) {
             exit 0
         }
         Catch {
-        Write-Warning "TacticalRMM install failed: $($_.Exception.Message)"
+            $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"
+    }
 }