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    Smart TV cannot connect to internet via ethernet

    Scheduled Pinned Locked Moved General pfSense Questions
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    • stephenw10S
      stephenw10 Netgate Administrator
      last edited by stephenw10

      So the wired traffic from the TV comes into the same interface? Same subnet?

      Looking at the IPs I guess that must be true.

      If the the wifi interface in the TV does not actually disconnect that would present a routing conflict that could produce exactly what you are seeing here.

      When it was connected via the Mikrotik were those interfaces also on the same subnet?

      I would try turning off the wifi entirely as a test.

      Steve

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        dimaj @stephenw10
        last edited by

        correct. both wired and wireless come into the same interface. same subnet. MikroTik was configured exactly the same.

        The reason for the new WIFI interface name now is because I saw in some video or blog post that separating wireless traffic from wired traffic could make it easier to quickly identify what device is connected to. So, I started doing prep work in pfSense to implement that. As this week will come to an end, I'll reconfigure my switch to map to LAN and wireless to WIFI interfaces. The LAN group has been created to group firewall rules together and allow lan-wifi communication.

        Just did network reset on the TV and, unfortunately, problem persists (without static mapping).

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        • stephenw10S
          stephenw10 Netgate Administrator
          last edited by

          Maybe check the AP. Make sure the TV is no longer associated with it when it's set to Ethernet.

          Steve

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            biggsy @stephenw10
            last edited by biggsy

            Interesting thread. I was just trying to fix a similar issue with a Samsung "smart" TV. It just keeps ARPing the gateway, despite the fact that it gets a response. Maybe the response is just too quick for it. It reports connected to LAN but no Internet access.

            Anyway, all my web searching leads me to believe that the network stacks in these things are crap.

            @dimaj said:

            prefer to keep all my device on ethernet

            100% agree. Wired when you can, wireless when you can't.

            I did find this suggestion for "disabling" the WiFi (a factory reset apparently won't clear the network config) but haven't had chance to try it:

            I was able to turn off my Samsung Smart TV's WiFi by using the TV's Wifi configuration.
            Depending on your model and menu functions look for network setup.
            Click on set up network or search for new network.
            After it searches for available wireless networks chose "ADD NETWORK" then enter a bogus name – a name that did not appear in the selection list.
            Then choose "OPEN" for security type. The TV will search for that network you named and won’t be able to connect to it. It will however keep the settings. Once the configuration is finished it will display network address as 0.0.0.0 for all fields.
            Turn the TV off. The next time you turn the tv on it will briefly search for the network and when it doesn't find it the wifi shuts off by default.

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              dimaj @biggsy
              last edited by

              @biggsy, thank you for the suggestion! Just went through that and, sadly, same results.

              @stephenw10 , Just checked in my UniFi controller. Device is no longer associated.

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                biggsy @dimaj
                last edited by

                @dimaj

                Thanks for trying. Maybe saves me some time on my friend's problem.

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                  dimaj @biggsy
                  last edited by

                  @biggsy, you bet! But, I still think you should go through the same steps with your friend's TV as well... sadly (or luckily), even if this didn't work for me, doesn't mean that it'll work for you :)

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                    dimaj
                    last edited by

                    @stephenw10,

                    I am soooo sorry to have wasted your time on this issue... Sadly, I have to admit that it was a typical case of PEBCAK.

                    As I was setting up my UniFi AP, I have changed one of the ports on my switch to receive tagged traffic and I completely forgot that something has been plugged into that port.

                    I stumbled onto that by finally biting the bullet and switching all my hard-wired devices to the LAN interface. When I went back to my TV to see what's happening, I saw that it was still getting address assigned to the WIFI network. After removing TV's cable and plugging in my laptop into that cable, I was still getting the same subnet IP. Finally, moving the cable to a different port on the switch put me in the proper subnet and TV connected to the internet in no time.

                    Again, I am really sorry I have wasted your time on this wild goose chaise and a huge thank you for helping me troubleshoot this issue.

                    @biggsy,
                    Make sure that your friend's TV is properly wired. Make sure that the cable used to connect TV to the switch/router is good. Get a tester and make sure that all pairs are in proper order. Try plugging in another device into the same network cable that TV is plugged into and see if you get IP in the proper subnet and can access internet.

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                      biggsy @dimaj
                      last edited by

                      @dimaj:

                      Make sure that your friend's TV is properly wired. Make sure that the cable used to connect TV to the switch/router is good. Get a tester and make sure that all pairs are in proper order. Try plugging in another device into the same network cable that TV is plugged into and see if you get IP in the proper subnet and can access internet.

                      Thanks but, yeah, I've already done all that.

                      Now I'm really starting to suspect that it's got something to do with the device he's using as an AP and switch. The thing just isn't designed to be used that way. It's pretty good as an AP but I think the problem is almost certainly related to having had the TV connected via its WiFi initially and then cabling it to the on-board switch instead.

                      Glad you got yours working.

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                      • stephenw10S
                        stephenw10 Netgate Administrator @dimaj
                        last edited by

                        @dimaj said in Smart TV cannot connect to internet via ethernet:

                        I am soooo sorry to have wasted your time on this issue... Sadly, I have to admit that it was a typical case of PEBCAK.

                        No worries, everyone has done that. 😉

                        It's interesting that DHCP still worked in that situation. 🤔

                        Glad you were able to resolve it!

                        Steve

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                          dimaj @biggsy
                          last edited by

                          @biggsy
                          Thanks!

                          if your friend is using UniFi for all networking purposes (switch and AP), I read on Lawrence Systems' forums that a controller upgrade might be necessary to get this working. Sadly, I'm having a hard time finding that post again. If I will, I'll post the link here.

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                            dimaj @stephenw10
                            last edited by

                            @stephenw10

                            I found that odd too. I'm not by any means a networking professional - I'd consider myself an advanced beginner, but I do not understand why that port was locked into vlan 10 or how was vlan 10 chosen for devices on that port... 🤷

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