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Land F/X
  • Portal
  • Products
    • Detail F/X
      • Product
      • Features
      • Trial
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    • Planting F/X
      • Product
      • Features
      • Trial
      • Purchase
    • Irrigation F/X
      • Product
      • Features
      • Trial
      • Purchase
    • F/X CAD
    • Plugin for Revit®
    • Plugin for SketchUp®
    • Plugin for Rhino®
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    • Lighting
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  • Support
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    • Submit Ticket
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  1. Home
  2. Knowledge Base
  3. F/X CAD & AutoCAD
  4. Errors: F/X CAD & AutoCAD
  5. Error: 'Bad Argument Type: VLA-Object Collection, VLA Object' (Placing a Detail, Setting the Scale, etc.)

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    Functionality Locked: Please Validate Your Internet Connection

    Updated on: June 29, 2026

    Issue

    You saw the following error message when attempting to install F/X CAD:

    Functionality locked

    Please validate your Internet connection.

     

     

    Cause

    This error message can result from any of the following issues:

    • A bad Internet connection
    • One or more of the following items preventing Land F/X from communicating with our servers:
      • A firewall
      • Antivirus software
      • Strict folder permissions
    • The F/X CAD executable (acad.exe) possibly being blocked

     

     

    Solution

    1. Verify that your computer is connected to the Internet.

     

    2. Verify your firewall and security settings, ensuring that a firewall, antivirus program, or strict folder permissions are not blocking Land F/X from communicating with our servers.

     

    3. Verify that the F/X CAD executable (acad.exe) is also not being blocked. You may need to create an exception for the entire install dir for F/X CAD.

    Contact

    • Land F/X
    • PMB 351 3940 Broad St. STE 7
      San Luis Obispo, CA 93401
    • +1 805-541-1003
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    Our software tailors AutoCAD®, Revit®, SketchUp®, and Rhino® to the needs of landscape architects, irrigation designers, and other professionals. We automate your most tedious tasks and ensure accuracy, giving you more time to design.

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