We are having for some time this problem and it is not even consistent. We can work for few days without any issue and all of the sudden, "InvalidLogin: Cannot complete login due to an incorrect user" when trying to provision a new host.
Logging into vsphere manually works fine.

this is the error message

016-01-31 05:06:18 [I] Rendered text template (0.0ms)
2016-01-31 05:06:18 [I] Completed 200 OK in 170ms (Views: 0.6ms | ActiveRecord: 14.7ms)
2016-01-31 05:06:18 [W] Failed to destroy a compute tlvvc01 (VMware) instance testvm : InvalidLogin: Cannot complete login due to an incorrect user name or password./opt/rh/ruby193/root/usr/share/gems/gems/fog-1.29.0/lib/fog/vsphere/compute.rb:443:in `rescue in authenticate'
/opt/rh/ruby193/root/usr/share/gems/gems/fog-1.29.0/lib/fog/vsphere/compute.rb:439:in `authenticate'

1. Did any of you encounter this in foreman?
2. Does foreman connect to the LDAP or locally for VMWARE?

Thanks,
Amit