rhnreg_ks encountering rhn.rpclib.InvalidRedirectionError when trying to register clients to Satellite

Issue

[root@rhel5 ~]# rhnreg_ks --sslCACert=/usr/share/rhn/RHN-ORG-TRUSTED-SSL-CERT --serverUrl=https://satellite.example.com/ --email=user@example.com --username=<sat_admin> --password=<password>An error has occurred:
rhn.rpclib.InvalidRedirectionError
See /var/log/up2date for more information

[root@rhel5 ~]# cat /var/log/up2date
[Wed Sep  7 11:56:35 2011] up2date
Traceback (most recent call last):
  File "/usr/sbin/rhnreg_ks", line 227, in ?
    cli.run()
  File "/usr/share/rhn/up2date_client/rhncli.py", line 65, in run
    sys.exit(self.main() or 0)
  File "/usr/sbin/rhnreg_ks", line 90, in main
    rhnreg.getCaps()
  File "/usr/share/rhn/up2date_client/rhnreg.py", line 292, in getCaps
    s.capabilities.validate()
  File "/usr/share/rhn/up2date_client/rhnserver.py", line 156, in __get_capabilities
    self.registration.welcome_message()
  File "/usr/share/rhn/up2date_client/rhnserver.py", line 50, in \__call__
    return rpcServer.doCall(method, *args, **kwargs)
  File "/usr/share/rhn/up2date_client/rpcServer.py", line 204, in doCall
    ret = method(*args, **kwargs)
  File "/usr/lib64/python2.4/xmlrpclib.py", line 1096, in __call__
    return self.__send(self.__name, args)
  File "/usr/share/rhn/up2date_client/rpcServer.py", line 38, in _request1
    ret = self._request(methodname, params)
  File "/usr/lib/python2.4/site-packages/rhn/rpclib.py", line 416, in _request
    raise InvalidRedirectionError(
rhn.rpclib.InvalidRedirectionError: Redirected to unsupported protocol None

This is happening on both RHEL4 and RHEL5 clients.