How to Fix ERROR_CLIENT_SERVER_PARAMETERS_INVALID

The ERROR_CLIENT_SERVER_PARAMETERS_INVALID code 597 (0x255) indicates that the parameters sent from a client to a server (or vice versa) in a shared memory window were invalid. This usually happens when the data being transferred exceeds the expected limits or is formatted incorrectly.

How do I fix ERROR_CLIENT_SERVER_PARAMETERS_INVALID?

1. Restart the affected application and system and update them

• Close the application that triggered the error.
• Restart your computer to clear temporary memory and reset system processes.
• Open the application again and check if the error persists.

Also, you need to ensure that the software (client and server) is up-to-date. Check for available updates for Windows, drivers, and firmware. If you are using a client-server setup, make sure both are running compatible versions. A mismatch may cause several issues, including the ERROR_CLIENT_SERVER_PARAMETERS_INVALID.

2. Reinstall the affected application

1. Click the Start button, type control panel, and open the app from the results.
2. Go to Programs & Features, look for the application that is triggering this error and uninstall it.
3. Restart your computer.
4. Download and reinstall the latest version from the official source.

If updating doesn’t work, a fresh install might resolve corrupted files.

3. Verify the app’s configuration settings

• If the application has client-server communication settings, check that the parameters are correctly set.
• Look for configuration files (.ini, .json, .xml, or registry settings) and ensure they match the server’s expected values.

4. Check for excessive memory usage

• If the error is caused by too much data in the shared memory, try:
  • Closing unnecessary background apps to free RAM.
  • Reducing the amount of data being transferred (if possible).
  • Increasing virtual memory (Paging File) in Windows:
    1. Open Control Panel > System > Advanced System Settings.
    2. Go to Performance > Settings > Advanced.
    3. Under Virtual Memory, click Change and increase the size.

Also, if the client server runtime process has high CPU usage, click the highlighted link to read our guide on how to fix the problem.

5. Review application logs for debugging

1. Press Win + R, type eventvwr.msc, and press Enter to launch Event Viewer.
2. Check the application’s event log. If you can’t find any here, you might also check for one in the Program Files folder of the app or in AppData.
3. Look for any specific error messages that indicate invalid parameters.

Many applications generate logs that record errors and this will help you pinpoint the exact problem that is causing the ERROR_CLIENT_SERVER_PARAMETERS_INVALID bug check.

If none of the above steps work, check the official support forums of the affected application. Report the issue to the software’s customer support or IT department with detailed logs.

Following these steps should resolve the ERROR_CLIENT_SERVER_PARAMETERS_INVALID issue in most cases. Let us know in the comments below if you need further help.

This isn’t the only issue you can encounter, and we wrote about ERROR_SERVER_SID_MISMATCH in our previous guides, so don’t miss it.