Network Management

Unable to import Network Atlas Map to SolarWinds Platform Maps - error "Unexpected error: An error occurred while generating map xxx.orionmap"

After importing a Network Atlas map into SolarWinds Platform Maps, users may encounter the error message: "Unexpected error: An error occurred while generating map xxx.orionmap."

First published date

12/17/2025 9:51 PM

Last published date

12/17/2025 9:51 PM

Overview

This error appears in the web console when attempting to open or generate a Network Atlas map that was imported into SolarWinds Platform Maps.

"Unexpected error: An error occurred while generating map xxx.orionmap"

Product section

Network Performance Monitor

Cause

This issue is commonly caused by a mismatch between the IIS Application Pool configuration and the bitness required by the Network Atlas map rendering process. Specifically, the application pool may be running in 32-bit mode when 64-bit mode is required, or vice versa.

Resolution

  1. Open IIS Manager
    Press Win + R, type inetmgr, and press Enter.
  2. Navigate to Application Pools
    In the Connections pane on the left, click your server name, then select Application Pools.
  3. Select the Application Pool
    Find and select the application pool you want to configure (e.g., SolarWinds Orion Application Pool).
  4. Open Advanced Settings
    Right-click the selected application pool and choose Advanced Settings…
  5. Modify the "Enable 32-Bit Applications" Setting
    Under the General section, locate Enable 32-Bit Applications and set it to:
    • True to enable 32-bit mode
    • False to enable 64-bit mode
  6. Apply Changes and Restart the Application Pool
    Click OK to save changes.
    Then right-click the application pool and select Recycle or Start/Stop to apply the new setting.

See Switch IIS Application Pool between 32-bit and 64-bit mode to address 'Class Not Registered' error when loading Network Atlas Maps in SolarWinds Platform 2025.4 for more information.