rhn_register xml error

I'm trying to register a RHEL 6.7 server to our Satellite server and am getting the following error message when i run rhn_register:

An error has occurred:

See /var/log/up2date for more information

My satellite servers URL and SSL entries are in the up2date file as I've done 100 times before. I've verified the time on the server is correct. Ping is successful between the two servers. Name resolution works between the two servers.

(/var/log/up2date)
[Mon May 2 10:43:07 2016] rhn_register
Traceback (most recent call last):
File "/usr/sbin/rhn_register", line 76, in
app.run()
File "/usr/share/rhn/up2date_client/rhncli.py", line 84, in run
sys.exit(self.main() or 0)
File "/usr/sbin/rhn_register", line 58, in main
ui.main()
File "/usr/share/rhn/up2date_client/tui.py", line 1278, in main
tui.run()
File "/usr/share/rhn/up2date_client/tui.py", line 1236, in run
result = win.run()
File "/usr/share/rhn/up2date_client/tui.py", line 235, in run
tui_call_wrapper(self.screen, rhnreg.getCaps)
File "/usr/share/rhn/up2date_client/tui.py", line 81, in tui_call_wrapper
results = func(*params)
File "/usr/share/rhn/up2date_client/rhnreg.py", line 249, in getCaps
s.capabilities.validate()
File "/usr/share/rhn/up2date_client/rhnserver.py", line 161, in get_capabilities
self.registration.welcome_message()
File "/usr/share/rhn/up2date_client/rhnserver.py", line 51, in __call
return rpcServer.doCall(method, *args, **kwargs)
File "/usr/share/rhn/up2date_client/rpcServer.py", line 210, in doCall
ret = method(*args, **kwargs)
File "/usr/lib64/python2.6/xmlrpclib.py", line 1199, in __call__
return self.__send(self.__name, args)
File "/usr/share/rhn/up2date_client/rpcServer.py", line 40, in _request1
ret = self._request(methodname, params)
File "/usr/lib/python2.6/site-packages/rhn/rpclib.py", line 386, in _request
self._handler, request, verbose=self._verbose)
File "/usr/lib/python2.6/site-packages/rhn/transports.py", line 188, in request
return self._process_response(fd, connection)
File "/usr/lib/python2.6/site-packages/rhn/transports.py", line 216, in _process_response
return self.parse_response(fd)
File "/usr/lib/python2.6/site-packages/rhn/transports.py", line 236, in parse_response
p.feed(response)
File "/usr/lib64/python2.6/xmlrpclib.py", line 601, in feed
self._parser.Parse(data, 0)
: syntax error: line 1, column 62

Anyone seen this before?