After installing UMP and CABI to a single machine, then uninstalling UMP, users will find that CABI is no longer functional and the wasp probe has been removed from the machine.
Although the documentation specifically indicates that CABI and UMP should not be installed on the same server, some users have done so for proof-of-concept environments or small installations.
CA does not advise doing this, but if it is done, and then later a user uninstalls UMP, the uninstaller will remove the wasp probe which CABI depends on.
The solution is simply to reinstall CABI over the top of the existing installation. The wasp probe will be redeployed and reconfigured during the reinstall.