Vmware OPmanager 9 add host: webservices error

Vmware OPmanager 9 add host: webservices error

Hi,
 
I am trying to add a host in OPmanager 9. I already have a host in OPmanager and the host I'm trying to add used to be in OPmanager, but was deleted. When I try to add this host back in, with the same credentials used before and on the working manager host, I get an error: Couldn't fetch information from webservices
 
I can browse to the host over the web, so I know that the webservices are working.
 
I can't figure this out.  
 
Thanks

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