DPM server agents can't be reach

I have a Server 2016 DPM server.  Recently suffered a power failure and had to be restarted.  Backups have stopped.  I installed Rollup 2 on the server.  From the DPM console, I can not install new targets on the target servers to be backed up.  I get an error 311

I then tried to install the DPM manually on a targeted server.  In the file explorer, I can see the DPM server, but I can not open it.  I can not browse to the DPM Agents directory.

The five target servers can not browse the DPM server.  The server is seen in the file explorer, but when I try to open and browse the DPM server I get a 0x80070035 error - Network Path Not Found.