You receive the following error when configuring VLSR appliance 9.0.3 with vCenter 8.0U3b or above.
Method drConfig.ConfigurationManager.validateConnection threw undeclared fault of type drConfig.fault.InternalError.
VLSR 9.0.3
vCenter 8.0U3 or above
VLSR 9.0.3 is only compatible with vCenter 9.0 and vCenter 8.0U3b or above
Use a compatible version of VLSR with your vCenter server: Reference the Product Interoperability Matrix.