[操作疑難] Window File Explorer 唔見部NAS? 請幫幫手

請幫幫手,用緊Window 7,唔知點解,搞過乜?
Window File Explorer 入面,Network入面,Computers 唔見部NAS (202TE),
但係,係media devices就見到,
用mapped drive可以去到部NAS,
就係Network入面見唔到,唔可以直接搵到同用到?
之前係有部NAS既icon,可以直接用到的。

NAS 202TE,最新firmware ADM2.3,Reset 過NAS,Router,PCs
202TE以經reset咗Services, Window File Explorer,local browser,
換過另一部router,電腦都係唔見部NAS
請問Ching們,點解會咁呢?