A list of the custom error codes, possible problem and possible solutions for Mobile Device Management.
Mobile Device Management Custom Error Codes
| Error Code | Possible Problem | Possible Solution | 
|---|---|---|
| -2147220846 | Unable to compute message signature for in-band authentication. | Possibly registration certificate is not valid anymore. Try enrolling a new client authentication certificate on the device. | 
| -2147220843 | Unable to find a valid client authentication certificate for registration. | Try enrolling a new client authentication certificate on the device. | 
| 11520 | Mobile device client deployment action failed. Failed to establish ActiveSync or Mobile Device Center connection to the mobile device. | Check the connection to the mobile device. | 
| 11521 | Mobile device client deployment action failed. Invalid client settings file. | Check mobile device client settings | 
| 11522 | Mobile device client deployment action failed. Error determining running directory for DmClientXfer.exe | Check the running directory for DmClientXfer.exe. | 
| 11523 | Mobile device client deployment action failed. Required ActiveSync libraries missing. | Check ActiveSync libraries. | 
| 11524 | Mobile device client deployment action failed. Could not determine processor type of attached mobile device. | Check the mobile device's processor type to make sure it is compatible. | 
| 11525 | Mobile device client deployment action failed. Could not determine base operating system version of attached mobile device. | Check the operating system of the mobile device to make sure it is compatible. | 
| 11526 | Mobile device client deployment action failed. Error determining client version for the attached mobile device. | Check the client version of the mobile device | 
| 11527 | Mobile device client deployment action failed. Error creating client settings .ini file. | Check the .ini file | 
| 11528 | Mobile device client deployment action failed. Failed to copy files to the attached mobile device. | Copy the files to the mobile device | 
| 11529 | Mobile device client deployment action failed. Failed executing the mobile device client installer program on attached mobile device. | Retry installation | 
| 11530 | Mobile device client deployment action may have failed. Failed reading status information from the mobile device. | Retry deployment | 
| 11540 | Mobile device client deployment action failed. Error determining running directory for the mobile device client installer program. | Check the running directory | 
| 11541 | Mobile device client deployment action failed. Error executing the pre-install command line. | Retry executing pre-install command line. | 
| 11542 | Mobile device client deployment action failed. Error executing the post-install command line. | Retry executing post install command line. | 
| 11550 | Mobile device client installation or upgrade failed. Error during removal of the previous client. | Retry removal of previous client. | 
| 11551 | Mobile device client installation or upgrade failed. Invalid client settings file. | Check the client settings file | 
| 11552 | Mobile device client installation or upgrade failed. Error installing client CAB file. | Check CAB file | 
| 11553 | Mobile device client installation or upgrade failed. Error starting client service. | Start client service | 
| 11554 | Mobile device client installation or upgrade failed. Error updating client settings. | Check client settings | 
| 11555 | Device Client Deployment failed with unknown error. | Check client deployment log on the mobile device. | 
| 11560 | Mobile device client verification or repair failed. Error during removal of previous client. | Retry removal of previous client. | 
| 11561 | Mobile device client verification or repair failed. Invalid client settings file. | Check client settings | 
| 11562 | Mobile device client verification or repair failed. Error installing client CAB file. | Check CAB file | 
| 11563 | Mobile device client verification or repair failed. Error starting client service. | Check client verification and/or repair. | 
| 11564 | Mobile device client verification or repair failed. Error updating client settings. | Check client settings. | 
| 11565 | Mobile device client verification or repair failed. Error restoring required files. | Retry verification and/or repair | 
| 11566 | Mobile device client privileged certificate installation failed. | The mobile device may have a security policy which prevents the client installer from installing certificates into the privileged and SPC certificate stores. | 
| 11567 | Encountered unknown error installing the device client. | Check client deployment log on the mobile device. | 
| 11568 | Mobile device client setup failed to launch during install. | Restart setup | 
| 11570 | Mobile device client removal failed. Error using unload.exe to uninstall the existing client. | Retry unload.exe | 
| 11571 | Mobile device client install/upgrade failed. Error enforcing new client. Mobile device rolled back to old client (if existed before). | Retry install/upgrade | 
| 11572 | Mobile device client rollback failed during unsuccessful upgrade. Error enforcing old client. | Need to freshly install the client. | 
| 11573 | Mobile device client failed to perform post cab install actions. Device client installation failed. | Retry device client installation | 





