Once again WAN Disconnected

[plexjellyfin]

Suddenly my F6-424 Max stopped working remotely no changes to anything.
I have done all troubleshooting steps

Rebooted the box and also turned it off
Rebooted the router and switch and also turned it off
Replaced ethernet cable with a new one and switch to a different port
Issue persist

[TMpzhen]

Is your TOS system network parameter DNS set correctly? If you have tried many methods but still cannot connect to the wide area network, we can schedule a time with you to provide remote service.

[CraftyClown]

I am having exactly the same problem on one of my three Terramaster NASes! My F4-423

They are all running TOS 6.0.577

There is a WAN connection for a few seconds when I boot up and then it drops and doesn't return.

I have also swapped out cables, tried both ports, manually changed IP address, changed ports on the router, multiple device reboots. Nothing resolves the issue!

[TMlinda]

Can you still log in to the TOS page? If you can, you can refer to the following instructions: viewtopic.php?t=5939

[CraftyClown]

Can you still log in to the TOS page? If you can, you can refer to the following instructions: viewtopic.php?t=5939

My network paramaters are set correctly. I'm certain this isn't a settings issue, as mentioned above I have tried different ports, different cables and different settings and this device stays disconnected from the WAN. My other two NASes are working fine

As you can see from the screen grabs below, even with DHCP assignment the WAN is unavailable

[TMlinda]

Have you enabled the Security Isolation Mode? If this function is enabled, TNAS will not be able to connect to the Internet.

[CraftyClown]

There is definitely something wrong with the networking settings here! If I reboot the device when the IP address is being assigned from the DHCP not only is the WAN not connecting, but it also shows the old manual address on the dashboard! Can someone look into this asap please as without WAN this device isn't usable for me! I can't download apps and I can't connect remotely

[CraftyClown]

Have you enabled the Security Isolation Mode? If this function is enabled, TNAS will not be able to connect to the Internet.

Nope

[TMlinda]

Please contact the online customer service on the official website to make an appointment for a remote inspection by an engineer. (When contacting customer service, please provide the communication process on the forum.)

[CraftyClown]

Please contact the online customer service on the official website to make an appointment for a remote inspection by an engineer. (When contacting customer service, please provide the communication process on the forum.)

Thank you. Do you mean via chat on the website?