New Post: Verification of file signature failed for file

The certificate has been imported in
(Local Computer)\Wsus certificate folder
(Local Computer)\Trusted Publisher
(Local Computer)\Trusted Root Certification Authority

The server was rebooted after importing and WPP runs directly on the WSUS server.

Does the Wsus server set up to store updates locally or clients will download it from MS servers ?

It stores updates locally.

Thanks!