Unable to connect to a Samsung 50 or a 43

[toebes]

I have two Frames and the app is unable to connect to either.

EzFrame version: 1.0.8
Client System: OS: windows | Arch: x86_64 | Family: windows | CPUs: 16

[2026-07-23 08:41:31] [LOG] [USER_EVENT] manual_connect {"ip":"192.168.4.20"}
[2026-07-23 08:41:36] [ERROR] Connection failed: CONNECTION_ERROR: Cannot reach device at 192.168.4.20:8001 or 192.168.4.20:8002. Check IP and that the TV is on.
[2026-07-23 08:41:38] [LOG] [USER_EVENT] debug_save_log {}
[2026-07-23 08:47:07] [LOG] [USER_EVENT] manual_connect {"ip":"192.168.4.42"}
[RUST] [TV_CONNECT] Connection failed to 192.168.4.42: Connection timeout: TV did not send 'ms.channel.connect' event within 30 seconds. Another device or app may already be connected to this TV — try disconnecting it first, then try again.
[2026-07-23 08:47:37] [ERROR] Connection failed: Connection timeout: TV did not send 'ms.channel.connect' event within 30 seconds. Another device or app may already be connected to this TV — try disconnecting it first, then try again.

I can successfully ping both devices. However, I can only telnet to the 43

$ telnet 192.168.4.42 8001
Trying 192.168.4.42...
Connected to 192.168.4.42.
Escape character is '^]'.
^CConnection closed by foreign host.
$ telnet 192.168.4.42 8002
Trying 192.168.4.42...
Connected to 192.168.4.42.
Escape character is '^]'.

^CConnection closed by foreign host.

What other debugging is there available?

Note that the TV is alive: When I go to http://192.168.4.42:8001/api/v2/ I get:

{
   "device":{
      "EdgeBlendingSupport":"false",
      "EdgeBlendingSupportGroup":"0",
      "FrameTVSupport":"true",
      "GamePadSupport":"true",
      "ImeSyncedSupport":"true",
      "Language":"en_US",
      "OS":"Tizen",
      "PowerState":"on",
      "TokenAuthSupport":"true",
      "VoiceSupport":"true",
      "WallScreenRatio":"-1",
      "WallService":"false",
      "countryCode":"US",
      "description":"Samsung DTV RCR",
      "developerIP":"0.0.0.0",
      "developerMode":"0",
      "duid":"uuid:51f0508f-9f9e-480a-95a2-74727175ac65",
      "firmwareVersion":"Unknown",
      "id":"uuid:51f0508f-9f9e-480a-95a2-74727175ac65",
      "ip":"192.168.4.42",
      "model":"24_PTM_FTV_T09",
      "modelName":"QN43LS03DAFXZA",
      "mouseWheelSupport":"false",
      "name":"Hallway 43" The Frame",
      "networkType":"wireless",
      "resolution":"3840x2160",
      "smartHubAgreement":"true",
      "ssid":"30:34:22:c4:27:06",
      "type":"Samsung SmartTV",
      "udn":"uuid:51f0508f-9f9e-480a-95a2-74727175ac65",
      "wifiMac":"20:15:DE:31:7C:28"
   },
   "id":"uuid:51f0508f-9f9e-480a-95a2-74727175ac65",
   "isSupport":"{\"DMP_DRM_PLAYREADY\":\"false\",\"DMP_DRM_WIDEVINE\":\"false\",\"DMP_available\":\"true\",\"EDEN_available\":\"true\",\"FrameTVSupport\":\"true\",\"ImeSyncedSupport\":\"true\",\"TokenAuthSupport\":\"true\",\"remote_available\":\"true\",\"remote_fourDirections\":\"true\",\"remote_touchPad\":\"true\",\"remote_voiceControl\":\"true\"}\n",
   "name":"Hallway 43" The Frame",
   "remote":"1.0",
   "type":"Samsung SmartTV",
   "uri":"http://192.168.4.42:8001/api/v2/",
   "version":"2.0.25"
}