Last Updated on October 4, 2026 by Umar Farooq
Your washing machine almost certainly cannot see your Wi-Fi network, and there is a specific reason that catches nearly everyone.
The requirement is the 2.4 GHz band, and it is not a Samsung quirk — it is how connected laundry is built across brands. Whirlpool states the rule for its own washers and dryers in one line: “Connect your phone to a Network SSID that supports the 2.4 GHz band (5 GHz is not supported)” (connecting your Whirlpool washer and dryer to WiFi). Samsung does not print the band on its US support pages at all — it points you to the user manual for the full set of network requirements, which is exactly why setup fails on a 5 GHz network without ever telling you the band was the problem.
Here is why that trips people up. Modern routers broadcast both bands under a single network name, and decide for you which one each device gets. Your phone, which supports both, gets pushed onto the faster 5 GHz band — and then you stand next to the washer, holding a phone that is very obviously connected to the network, watching the washer fail to find it. Everything looks fine. Nothing is fine.
Samsung’s other documented cause is more mundane and just as common: “The most common reason for setup to fail is that the network’s password was not entered correctly” (Samsung, “cannot connect a home appliance to SmartThings”).
Also worth saying plainly: a washer with no app connection at all should still wash clothes perfectly using its physical controls. SmartThings and the machine’s ability to run a cycle are separate systems. If your machine will not run a cycle either, that is a different problem and this is not the page for it.
Is the Samsung washer SmartThings not connecting a setup problem, or a drop?
These are different problems and mixing them up wastes time.
| What’s happening | What it points to |
|---|---|
| Never connected; app doesn’t find the washer | Band, model capability, or pairing mode |
| App finds it, setup stalls around 33–80% | Wrong band, wrong password, or weak signal |
| Connected once, now offline intermittently | Signal strength, router settings, network congestion |
| Connects but remote control doesn’t work | Smart Control not enabled on the machine |
Samsung’s documentation attributes stalls in that 33–80% range specifically to network issues — most often the wrong Wi-Fi band or an incorrect password. If that is where yours fails, you can stop suspecting the washer.
Confirm the machine supports it at all
Not every Samsung washer is SmartThings-capable. Before troubleshooting anything, confirm your exact model is listed as Wi-Fi capable in its manual or product page.
If there is no Wi-Fi module, no Smart Control button, and no app-pairing option mentioned anywhere in the manual, it simply is not a connected device. That is a hardware limitation, not a fault, and nothing below will change it.
Then update the SmartThings app. Samsung lists this as the first step in any connection troubleshooting, and an out-of-date app failing to pair with a current appliance is common enough to be worth ruling out before anything else.
Five fixes for Samsung SmartThings, starting with the Wi-Fi band
1. Sort out the Wi-Fi band
This is the fix in the majority of cases.
- Confirm your router broadcasts a 2.4 GHz network.
- If your router uses one combined name for both bands, go into its admin settings and look for an option to split 2.4 GHz and 5 GHz into separate network names. Some routers otherwise push devices onto 5 GHz automatically and give you no say in it.
- Once split, connect your phone to the 2.4 GHz network specifically while running setup.
2. Re-enter the password, carefully
Samsung names this as the single most common cause. Type it rather than relying on autofill, and watch for the usual suspects: a capital letter at the start that shouldn’t be there, a trailing space, or l versus 1.
3. Move the phone closer, and the signal too
Run setup standing at the machine, not from the sofa. Laundry rooms are frequently the worst-served corner of a house — often a garage, a basement, or behind a wall of appliances — and a signal that is adequate for a phone can be marginal for a low-power appliance module.
4. Reset the network settings on the machine
Use the sequence documented for your model. Do not use one found for a different Samsung model — the button combinations vary and an unconfirmed sequence can change settings you did not intend to touch.
5. Check Smart Control is enabled
If the machine connects but the app cannot control it, that is usually a separate toggle on the machine itself rather than a connection failure.
What the stall point tells you
| What you observed | What it means | What to do |
|---|---|---|
| Router has one network name for both bands | Very likely your cause | Split the bands, connect to 2.4 GHz |
| Setup stalls at 33–80% | Network-side, not the washer | Band, password, signal |
| Password re-verified, still fails | Band or signal strength | Split bands; test signal at the machine |
| Connects then drops repeatedly | Weak signal or congestion | Move the router, or add a mesh point |
| App never finds the washer | Pairing mode or model capability | Confirm Wi-Fi capability in the manual |
| Connects, but no remote control | Smart Control not enabled | Enable it on the machine |
If the band is confirmed 2.4 GHz, the password is confirmed correct, signal at the machine is good, and setup still fails, the remaining possibility is the washer’s Wi-Fi module — and that needs service (SmartThings: device is not recognized or will not connect).
Check again tomorrow, not just at setup
- Complete setup and confirm the washer appears in SmartThings.
- Start a cycle from the app to confirm two-way control, not just visibility.
- Leave it a day and check it’s still online — a connection that works at setup and drops overnight is a signal-strength problem, not a pairing one.
- Confirm cycle status updates in the app during an actual wash.
Where the router ends and Samsung support begins
- 2.4 GHz confirmed, password confirmed, good signal at the machine — and setup still fails.
- The washer never appears as an available device despite being a Wi-Fi model in pairing mode.
- It connects reliably to a phone hotspot but never to your home router with the same settings.
- Repeated drops with strong signal confirmed at the machine.
FAQ
Why does my phone connect fine but the washer can’t?
Because your phone supports 5 GHz and the washer doesn’t. If both bands share one network name, your phone may be on 5 GHz while the washer is looking for a 2.4 GHz network it cannot see.
Do I have to keep the bands split permanently?
No. Once the washer is paired to the 2.4 GHz network you can usually recombine them, though some routers will cause the washer to drop again. If it does, leaving them split is the simpler answer.
Will the washer still work without SmartThings?
Completely. Connectivity and washing are separate systems — every cycle works from the physical controls.
Setup keeps failing at the same percentage. That’s useful evidence. Samsung attributes stalls around 33–80% to network causes rather than the appliance, so focus on band, password and signal.
The panel works but the washer won’t connect. That actually rules out most panel faults — a responsive panel means the controls are fine. See washing machine control panel not responding only if buttons stop responding too.
I used Remote Start and now the door won’t open. Different issue — Remote Start can leave the door locked in a way that blocks manual operation. See washing machine won’t start.
Does a weak signal cause the machine to fail cycles?
No. A dropped connection costs you app control and notifications, nothing else. If cycles are failing, diagnose that separately — see washing machine stops mid cycle.
