[DMA-200] Why my DMA-200 can not browse the shard folder after using the UNC or IP address?

Please double check if the AntiVirus or Firewall System of the PC block the access of NetBIOS over TCP/IP?

Mostly, it could be your firewall system block your PC from being browsed by other unauthorized device like DMA-200.

Since the DMA-200 will only read your multimedia contents in your PC without doing any changes,

A. Only share the folders with Read-ONLY.
B. It is suggested that un-block the access of the DMA-200.
For example, set the IP address of DMA-200 as a trusted PC to your firewall system.

Then, DMA-200 shall be able to read your shared folders.