Unable to Access WD Ex4100 from Samsung Mart TV

If your WD My Cloud EX4100 is no longer accessible from your Samsung Smart TV, the issue is usually related to the network, the DLNA media server, or changes in the TV's media browsing support.

Try these troubleshooting steps:

Restart all devices

Power off the Samsung Smart TV.

Restart the WD EX4100.

Restart your router.

Wait until the NAS has fully booted before turning the TV back on.

Many users have reported that a complete reboot of the NAS, TV, and router restores connectivity.

Verify both devices are on the same network

Ensure the TV and EX4100 are connected to the same router and subnet.

Avoid guest Wi-Fi networks or VLANs, which can block device discovery.

Check the DLNA/Twonky Media Server

Log in to the EX4100 Dashboard.

Confirm that the DLNA (Twonky) Media Server is enabled.

If enabled, rebuild the Twonky media database and allow it to finish indexing. This can take some time depending on your media library.

Confirm media shares are enabled

Make sure the folders containing your videos, music, or photos are shared.

Verify the media files have been indexed by the DLNA server.

Update firmware

Install the latest firmware for both:

WD My Cloud EX4100

Samsung Smart TV

Firmware updates often resolve compatibility issues.

Check router settings

If available, disable IGMP Snooping temporarily.

Avoid double NAT (using two routers), which can interfere with DLNA discovery.

Test access from another device

Try accessing the EX4100 from:

A Windows PC

A Mac

A smartphone using a DLNA app

If other devices can see the NAS, the problem is likely with the TV rather than the EX4100.

Use a media server app

If the Samsung TV no longer detects the NAS directly, consider using a DLNA-compatible app or a media server such as Plex or Emby (if supported by your EX4100 and TV).

If the problem started recently

If you recently installed antivirus software, changed router settings, or updated firmware, those changes may have affected network discovery or file sharing. Confirm that SMB/DLNA services are still enabled and that no firewall is blocking local network traffic.

Information that would help diagnose further

Please provide:

Is your EX4100 running My Cloud OS 3 or OS 5?

What is your Samsung Smart TV model number?

Can you access the EX4100 from a computer on the same network?

Does the TV fail to see the EX4100 at all, or does it see it but cannot open the media?