Are you seeing this error during a Dell thin client upgrade or while using a specific software license manager?
Older Windows versions (7, 8, 10) sometimes retain corrupted IPsec policies in the registry. Even after correcting the PSK, the system continues using the old, invalid key due to a caching bug. error while validating security key error code 233
After reboot, the old PSK cache is cleared. Re-enter your key from Method 1 and test. Are you seeing this error during a Dell
If none of the above works, the issue may be server-side. Provide your IT team with the following information: After reboot, the old PSK cache is cleared
Find the string FFFFFFFF and change it to 00000000 . This may allow the installation to proceed, though you will still need a valid Activation License Key (ALK) later. 2. For CodeMeter & Licensing Errors If the error occurs while importing a license file: