Samsung TV automation not triggering — what to do now

Hey! We’ll fix your Samsung TV automation not triggering — and the key is identifying where it’s failing: the trigger (schedule / location / sensor), the SmartThings routine logic (conditions vs triggers), or the TV action (TV can’t be powered on remotely or shows offline).

SmartThings automations usually break for one of these reasons:
• The routine has conditions but no real trigger event (so it never evaluates).
• Location / geofencing stops updating (permissions, battery optimization, “get location from this phone” disabled).
• The TV is offline/disconnected in SmartThings, or the TV can turn off but won’t turn on due to power/network settings (common).
• The routine runs but the TV command fails because of network standby, router changes, IP changes, or TV power-saving settings.

Quick questions so we pick the right fix path (and don’t waste time with random resets):
1) Which automation type: time schedule, sunrise/sunset, geofence (arrive/leave), or device trigger (motion/presence/contact sensor)?
2) What’s the action: turn TV on, turn TV off, change input/app, volume, or run a Scene?
3) In SmartThings History/Activity: does it show the routine ran, or does it look like it never fired?
4) Can you control the TV manually in SmartThings right now (remote tile) — and does Power On work from the app?

Reply with those and I’ll give you a step-by-step “what to do now” recovery plan.

That’s a very common pattern: SmartThings can turn the TV off reliably, but powering it on is the tricky part because the TV has to keep a tiny part of the network awake while it’s in standby. If the TV’s network sleep / power-saving settings shut down the network interface, SmartThings can’t wake it, so your routine “runs” but the device doesn’t respond.

Also, location routines can fail if the phone’s location updates get throttled. So we’ll fix this in the right order:
(1) Confirm the TV can be turned on from SmartThings (manual test).
(2) Make sure the TV stays reachable in standby (Power On with Mobile / IP control / network standby).
(3) Stabilize the geofence trigger (permissions + battery optimization).
(4) Clean up routine logic and verify it has a true trigger.

Once these are solid, Samsung TV automations become reliable again.

Great — that confirms the core issue is remote power-on from standby, not routine design. Start with quick “no-risk” checks that directly affect whether a Samsung TV automation can wake the TV.

Step 1 — Confirm the TV is reachable + refresh the connection
1) Open SmartThings → go to your TV device card → try the on-screen remote.
2) If the TV shows Offline, do a quick network refresh: restart the TV (if it’s on) and reboot your router once. If you can’t restart the TV because it’s off, we’ll fix the TV standby settings next.

Step 2 — Enable “Power On with Mobile” / IP control (critical for turning on)
On the TV: Settings > General (or Connections) > Network > Expert Settings
Look for and enable:
• Power On with Mobile
• IP Remote (or similar IP control option, depending on model)
These options keep the TV reachable over the network so SmartThings routines can power it on.

After enabling those, test: turn TV off → wait 30 seconds → try the SmartThings power button once. If that works, your “arrive home” automation will stop failing.

Yep — this is the second big failure point: SmartThings location-based automation not triggering. Geofencing depends on your phone reliably updating location in the background. If location permissions are limited or battery optimization is aggressive, the routine may fire late or never.

Step 3 — Fix geofencing / presence triggers (so the routine actually fires)
On your phone, check these (don’t skip them — they’re the #1 reason “arrive home routine not working”):
1) SmartThings app permissions: set Location = Always (not “While using”). Also allow Background activity if your OS asks.
2) Disable battery restrictions for SmartThings: set it to Unrestricted / “Don’t optimize”. Battery saver modes can delay geofence updates.
3) In SmartThings app settings, confirm the option like “Get your location from this phone” is enabled for the account that is used as the presence trigger.
4) If your routine triggers off “Member presence,” make sure it’s your correct Samsung account/device and not an old phone that’s no longer reporting.

Quick reality check: geofence triggers can be “soft” (delayed by the OS). If you need instant action, we can also switch to a more reliable trigger (Wi-Fi arrival, a presence sensor, or a door sensor + time window).

Perfect detail — if your router is frequently reshuffling IPs (DHCP churn), a device may appear offline briefly or take time to “reconnect” in SmartThings, which makes automations feel random.

Step 4 — Stabilize the TV’s network identity (prevents “routine ran but device didn’t respond”)
1) In your router settings, set a DHCP reservation (static lease) for the Samsung TV’s MAC address. This keeps the TV on a consistent local IP.
2) Prefer a strong connection path: if Wi-Fi is weak or crowded, move the TV to 5 GHz (if close) or consider Ethernet (but note: some models behave differently on Ethernet vs Wi-Fi for wake; if wake breaks on Ethernet, switch back to Wi-Fi).
3) Reboot sequence once (to re-register cleanly): router reboot → TV restart → SmartThings app reopen.

Step 5 — Make sure the TV isn’t entering deep sleep
On Samsung TVs, power-saving / eco modes can reduce network standby. If you have settings like “Auto Power Off”, “Energy Saving”, “Eco Solution”, or “Instant On” options, we’ll tune them so the TV remains reachable for SmartThings power-on.

After this, the automation will stop “running into” an unreachable TV.

Yes — Anynet+ (HDMI-CEC) can absolutely make automation results look inconsistent: the TV turns on, but a connected device “steals” the input, powers on unexpectedly, or sends a command that changes the TV state. That can make people think the SmartThings routine didn’t trigger, when it actually did, but the HDMI chain changed what you see.

Step 6 — Quick HDMI-CEC sanity check (Anynet+)
If you see weird behavior like “TV turns on but switches inputs” or “console turns on by itself,” test this for one day:
• Disable Anynet+ (HDMI-CEC) temporarily on the TV (and/or disable HDMI device link on the connected box).

Why this helps: it removes surprise power/input events so you can confirm your Samsung TV automation is doing exactly what it should. Once we confirm stability, we can re-enable CEC selectively if you need it.

This is especially useful when your routine includes “Open app / switch input / set volume” and a CEC device is fighting for control.

Great question — and yes, this is a huge “silent fail” reason people report automation not triggering: a routine can have conditions, but it still needs a trigger event to evaluate those conditions.

Step 7 — Build routines the “trigger → conditions → actions” way
Think of it like this:
• Trigger: “When I arrive home” / “At 7:00 PM” / “Motion detected” / “Contact sensor opens”
• Conditions: “Only after sunset” / “Only if TV is off” / “Only if I’m home”
• Actions: “Turn on Samsung TV” / “Open an app” / “Set volume” / “Run a Scene”

So your “if TV is off” and “after sunset” are perfect as conditions — just ensure there’s a real trigger like arrive home or a scheduled time. Without a trigger, SmartThings won’t continuously poll conditions, so it looks like the routine never runs.

For maximum reliability, also add a tiny buffer in your logic (example: “arrive home” trigger + delay action 10–30 seconds, then TV on). That gives the TV time to come online in SmartThings after your phone reports presence.

Factory reset is the last resort. Use this ladder so you fix the root cause without wiping everything.

Reset ladder for Samsung TV automations
1) Fast refresh (most effective)
• Reopen SmartThings, confirm the TV is online, and test manual Power On once.
• Restart router + restart TV (when possible).

2) Power-on reliability check
• Re-check Power On with Mobile and IP Remote settings (some updates toggle settings back).
• Confirm the TV isn’t in a deep sleep / aggressive energy saving mode that kills network standby.

3) Trigger reliability check
• Confirm location permissions are still Always and battery optimization didn’t get re-enabled after an OS update.
• If geofence remains flaky, switch to a presence sensor or a door sensor trigger for “instant” behavior.

4) Rebuild the routine (better than factory reset)
• Duplicate or recreate the routine to clear a stuck logic state, and keep it simple: trigger → conditions → actions.

5) Factory reset (only when justified)
• Only if the TV frequently shows offline, won’t stay connected, or SmartThings control breaks across the board even after network and permission fixes.

If you tell me your Samsung TV model year (approx.) and whether you use Wi-Fi or Ethernet, I can recommend the most stable “wake” settings combo for your exact setup.

Love it — and that result makes sense. Samsung TV automation not triggering is usually a combo of (a) the TV not being wakeable from standby and/or (b) the phone not reliably reporting presence for geofencing routines.
The biggest wins are: enable Power On with Mobile + IP Remote, stabilize networking with an IP reservation, confirm SmartThings has Always location permission and no battery restrictions, and keep routines built as trigger → conditions → actions. If you want, open the chat and I’ll help you tune a “bulletproof” routine for your exact TV model and smart home setup.