Since doing the zOSTarget patch, i'm not able to register any workstations. I checked the zOSTarget table and it is empty. I've tried double-checking the steps of the patch to make sure I didnt miss anything, server/services have been restarted, but table isnt repopulating. Help?

C:\>zac reg http://zcm

Processing Command: reg

user name:administrator
password: ******

Unable to register with the server at: http://zcm.
Service Error. code: -21, message: Could not determine device type from <OS>
tag: winxp-pro-sp3-x86