Mini I 4 NAS Access

[Robert_1483]

Hello, My Mini I 4 is not seeing my Synology diskstation DS 220J NAS on my LAN. My OPPO 205 accesses and plays files from it with no trouble. Is there a setting I have to change? 
TIA, Rob.

[LI HUI]

Hello, My Mini I 4 is not seeing my Synology diskstation DS 220J NAS on my LAN. My OPPO 205 accesses and plays files from it with no trouble. Is there a setting I have to change? 
TIA, Rob.

HI，Robert
You can add the NAS as an SMB sharing folder to the mini-i Pro 4, mini-i Pro 4 also discovers UPnP media server of your NAS, which method did you use?