Client is unable to find the server.
QNAP TS-459U+ Client version 2.5.7 Server version 1.9.3
Also installed V2 manually from your website. But no luck.
OK, perhaps you network is blocking udp broadcasts. In the client right click USB Hubs -> Specify Hubs then add your server ip of your qnap and the port is 7575
OK, perhaps you network is blocking udp broadcasts. In the client right click USB Hubs -> Specify Hubs then add your server ip of your qnap and the port is 7575