Cannot download updates into SCCM

We recently moved our Patch Manager to a Windows 2016 server. To deploy updates we are using SCCM. In SCCM I am able to open 3rd Party Updates and publish the updates. But when I go to Software Updates-> All Software Updates and try to download the updates, I get an error message saying "The SMS Provider reported an Error" and the download fails. SCCM version is 1710.

Thanks.