Over time, the TrustedStorage.bin file, which stores your license handshake data, becomes corrupted. This is a classic cause of intermittent 7502 errors.
CADWorx SPLM Error 7502 is a common licensing issue that occurs when the software is unable to communicate with the SmartPlant License Manager (SPLM) server. This error typically stops your workflow by preventing CADWorx modules from launching, often displaying the message: "Could not read data from SPLM server".
The guide below provides a comprehensive walkthrough to diagnose and fix this error. Understanding Error 7502
At its core, Error 7502 signifies a broken connection between your local CADWorx installation and the license server. This can happen if:
The SPLM software is not installed or configured on the client machine.
Network issues are preventing the client from "seeing" the license server.
Firewall settings are blocking the specific communication ports used by Intergraph/Hexagon software.
You are using an older version of SPLM that has been deprecated in favour of Intergraph Smart Licensing (ISL). Step-by-Step Solutions 1. Verify SPLM Client Configuration cadworx splm error 7502
The most frequent cause is that the local machine doesn't know where to look for the license.
Open the License Manager: Go to Start > Programs > CADWorx > License Manager.
Check Connection: Ensure the computer is configured to point to the correct SPLM server IP address or hostname.
Restart CADWorx: After making changes, fully restart the application to trigger a fresh license check. 2. Check Firewall and Network Access
If the configuration is correct but the error persists, your network may be blocking the "handshake" between the client and server.
Add Firewall Exceptions: Ensure pdlice.exe (usually located in C:\win32app\ingr\splm\bin) is allowed through the Windows Firewall.
Test Connectivity: Open a command prompt and try to ping the license server’s IP address. If the ping fails, you have a general network connectivity issue that must be resolved by your IT department. 3. Address Legacy Software Conflicts Over time, the TrustedStorage
Intergraph (Hexagon) has transitioned away from the traditional SPLM system.
Upgrade to Smart Licensing: As of December 31, 2024, Hexagon no longer generates new license keys for the old SPLM system. If your organization has migrated, you must install the Intergraph Smart Licensing (ISL) Client instead of the old SPLM client.
Clean Install: If you have both SPLM and ISL installed, they may conflict. It is often recommended to remove the old SPLM before installing the new Smart Licensing system. 4. Advanced Troubleshooting Intergraph Smart Licensing - Version 14.3 - Help - Hexagon
Title: Technical Analysis and Resolution of CADWorx SPLM Error 7502: A Comprehensive Guide to License Configuration Management
Abstract
This paper provides a technical examination of CADWorx SPLM (SmartPlant License Manager) Error 7502. This error is a common operational barrier in industrial design environments utilizing Hexagon’s CADWorx Plant Design Suite. It typically indicates a failure in the communication handshake between the client workstation and the SPLM license server. This document analyzes the root causes, dissects the underlying architecture of the SPLM communication protocol, and provides a step-by-step remediation strategy for system administrators and CAD managers.
Before fixing the error, it is critical to understand what SPLM is. SPLM (Software Protected License Management) is Hexagon’s (formerly Intergraph) licensing system used by CADWorx, CAESAR II, and PV Elite. Unlike older hard-dongle systems, SPLM can manage network floating licenses or local node-locked licenses. Before fixing the error, it is critical to
Error 7502 is a connectivity or communication error. In plain English, your CADWorx installation is trying to talk to the license server (or local license file), but the handshake is failing.
The primary causes of a 7502 error fall into four categories:
If your CADWorx is 2021 but your SPLM version is from 2018, you will get random 7502 errors. Solution: Download the latest SPLM redistributable from Hexagon’s Smart Support portal and install it on both the server and all clients.
The client configuration often points to the server via Hostname rather than IP address.
The following procedure is recommended for system administrators to resolve Error 7502.
Try this quick workaround:
If none of the above works, contact Hexagon Support with your debug.log file (found in %temp%\SPLEM_logs). Tell them you’ve already tried steps 1-5—they’ll appreciate it.
Error 7502 is most often a licensing/communication issue between CADWorx and its license manager. Systematic diagnosis—checking connectivity, license validity, version compatibility, permissions, and firewall settings—usually identifies the root cause. If local fixes fail, collect logs and escalate to your CADWorx vendor/reseller for license reissuance or deeper server-side troubleshooting.
Related search terms tool invocation forthcoming.