Recently I reset the samsung SmartTv and tried to re-install all the TV apps and re-configure the connection. The TV is connected to the internet via Ethernet Cable and the IP setting indicates the TV is connected and obtained an IP address from the Netgate device.
But when it came to the "terms and privacy" page on the smartTV, the TV failed to connect to the Samsung server, with error message saying " the connection is unstable". It was rather strange to see that, before the reset, everything was working fine. I changed the ethernet cable, try to use wifi connection instead of cable and received the same error message.
Without the registration with the Samsung server, I would not be able to use any of the smartTV features.
I disabled the pfBlockerNG and it did not make any difference.
In the mean time, I got a new Samsung smart TV from the black friday deal and I am seeing the same error message, "the connection is unstable", failed to register with Samsung's server.
I suspected it is pfsence causing this and I only have some very basic firewall rule. I am not sure how i could fix this. I put back my ISP provided router into the network and I was able to completed the 2 smartTV registration and setup. After it was completed, I switched it back to Netgate device. Now the 2 smartTV are working as it should be.
It is a quick and easy fix if you have a similar problem on a new smartTV setup. You do not need to change any configuration on the pfsense.
Generally, once you have setup the smartTV, you would not change any of its configuration. So, it could be just a one time trouble. Do not unplug or plug device from your smartTV after the setup. Your smartTV may not be able to detect the device, hence you would not be able to program the Samsung's universal remote. Especially with Amazon FireTV stick.
The TVs are on the Main LAN and I can see both TV on Samsung's smart thing App. I have main LAN, Camera VLAN, IOT VLAN.
It would be great if there is a solution to fix it through the pfsense configuration instead of switching hardware.