Onkyo TX-NR545 Manual page 38

2. With the cursors, select "Home Media", and then press ENTER.
3. With the cursors, select the target server, and then press ENTER.
You can check the server name of your PC from the PC properties.
4. With the cursors, select the target shared folder, and then press ENTER.
5. If a username and password is required, enter the necessary login
information.
The login information is the account information set at the time of
creating the shared folder.
Once entered, the login information will be remembered from the next
time onward.
6. With the cursors, select the music file to play, and then press ENTER or
to start playback.