After the CTP upgrade, you need to reinstall the connector from the shared folders. Give that a go. I had the same problem too. Make sure you uninstall the old connector first.
After the CTP upgrade, you need to reinstall the connector from the shared folders. Give that a go. I had the same problem too. Make sure you uninstall the old connector first.
After the upgrade I also had the same problem, but also had to remove the original PC from the back up folder in WHS. After that both worked fine, it picked up the old backups as well.