Unable to update RX4100

I am unable to update my RX4100 using the Dashboard. 

Monitor → Software Update tab → click on “Check for Updates”.

It immediately returns “Cannot reach update server”

It also writes this in the Windows application log.

Exception in WDSoftwareUpdateProvider.HostService.ProviderService.GetHttpResponse: The remote server returned an error: (500) Internal Server Error.

At WD recommendation I have set a static IP address on the machine, and I have also tried disabling the windows firewall. 

Any other suggestions?

Thanks!

can you surf the internet from the server?

You do not have any mechanisims in place that block zip files?