Technician helping when a smart home device remote is lost

Steve H.

Expert ★★★★★ 27,853 satisfied customers

Specialities: Smart home hub stability (SmartThings/Google/Nest-style hubs), Wi-Fi dropouts on 2.4 GHz vs 5 GHz, router/mesh changes, firmware update side effects.

Common reasons a smart hub drops off 5GHz — what to check first (safe diagnostics)

Technician avatar Technician
If your home hub keeps dropping off Wi-Fi, that’s stressful — especially when lights, sensors, or automations depend on it.

Let’s start with the safest checks first. I don’t want you to change settings that could knock other devices offline or make the hub harder to rejoin.

Before this started, did anything change: a new router, a mesh install, an internet provider swap, or a firmware/app update?
Customer
It was stable for months. Then my ISP replaced the router. Now my smart hub disconnects a few times a day. I picked the 5GHz network because it sounded better, but it’s not reliable.
Technician avatar Technician
That “started after a router replacement” detail is important.

Quick orientation (in plain language): 5GHz can be faster, but it can also be less forgiving through walls and distance. A hub often cares more about steady signal than speed.

When the hub disconnects, what do you notice first — do automations fail immediately, do connected devices show “offline,” or is it mainly the hub status that flips?
Customer
The hub status goes offline and then a bunch of devices show offline too. After a while it comes back, but some devices stay “not responding” until I wait or restart things. It makes me nervous to touch anything.
Technician avatar Technician
You’re right to be cautious. Random resets can create extra problems (like re-pairing or losing automations), so we’ll avoid that unless it’s truly needed.

Let’s separate two possibilities without doing anything risky:
• The hub is losing its Wi-Fi connection (signal, band behavior, router features).
• The hub is connected, but the network path is unstable (router changing channels, IP lease renewals, or “smart” steering).

Do your 2.4 GHz and 5 GHz networks have the same Wi-Fi name, or are they separate names?
Customer
Same name. The router app says it “chooses the best band automatically.” I didn’t set it up that way on purpose. It also seems worse at night.
Technician avatar Technician
That fits a common pattern after ISP router swaps: a single Wi-Fi name with band steering (sometimes called Smart Connect). Phones and laptops usually handle that well. Some smart home hubs don’t like being nudged between bands, especially when the signal is borderline or the network is busy at night.

Trust moment: I don’t want you to change ten settings at once. We’re going to do small, reversible checks so we can tell what actually helps.

Where is the hub located relative to the router — same room, one wall away, or farther (like a closet or cabinet)?
Customer
It’s in a hallway cabinet, maybe 2 walls from the router. I thought that was fine because my phone has Wi-Fi there. The hub is plugged in, not on battery.
Technician avatar Technician
A cabinet and two walls can matter for 5GHz, even if a phone still “looks fine.” Phones often switch bands smoothly, but a hub may not recover as gracefully once the signal dips.

Two safe checks that don’t change anything:
1) Stand right by the hub with your phone and see whether your phone stays on 5GHz steadily or flips bands.
2) In the router app, look for the current 5GHz channel number (just reading it is safe).

If you find the channel number, tell me what it is (like 36, 44, 100, 112, etc.).
Customer
Standing near the hub, my phone sometimes drops from 5GHz to 2.4GHz. The router shows the 5GHz channel is 112 and something about DFS being used automatically.
Technician avatar Technician
That’s a very useful clue — and you found it without changing anything.

DFS on 5GHz can be fine, but it can also cause brief interruptions or channel changes on some routers. Many devices recover quickly; some hubs struggle and show a disconnect loop afterward.

Another safe thing to check: does the router app show the hub’s “connected time” or a log of disconnects? Even a simple pattern (same times daily) helps confirm it’s a network behavior issue rather than a random hardware fault.
Customer
I see disconnects mostly in the evening and sometimes early morning. It reconnects, but some devices lag behind. Could it be the hub itself failing?
Technician avatar Technician
It’s possible, but your details lean more toward environment than failing hardware.

Here’s a calm way to think about it: if the hub is in a spot where 5GHz is “sometimes strong, sometimes weak,” and the router is allowed to use DFS and steer bands, you can get repeated dropouts even when the hub is healthy.

One more safe check: do you have many devices streaming or gaming in the evenings? Heavy use can increase interference and also trigger routers to “optimize” channels more often.
Customer
Yes, my family streams TV and games at night. I didn’t realize that could affect the hub. I’m worried about changing router settings and breaking everything.
Technician avatar Technician
That concern is valid. The safest approach is to avoid “big swings.” We don’t need to overhaul your Wi-Fi to learn what’s happening.

If you decide to test later, keep it simple and reversible: change only one thing, then observe for a full day. That way you’ll know whether stability improves without guessing.

Also, if your hub supports 2.4 GHz, it may be worth considering purely for reliability — 2.4 travels through walls better. Not as fast, but often steadier for a stationary hub.
Customer
So it’s not crazy to use 2.4 for the hub even if everything else uses 5GHz? I felt like I was “downgrading.”
Technician avatar Technician
Not crazy at all. For a smart hub, “stable” usually beats “fast.”

And you’re already doing the right thing by collecting clues: the disconnect timing, the hub location, and the DFS channel info. Those are the pieces that help you avoid unnecessary resets and avoid blaming the hub prematurely.

If you want one last safe sanity check: confirm the hub has a steady power connection and isn’t on a switched outlet or power strip that gets turned off accidentally. Power blips can look exactly like Wi-Fi drops.
Customer
Good point. It is on a power strip in the cabinet. I’ll make sure it’s not getting switched off. I’m relieved there are safe checks before doing anything drastic.

Quick answer: the accepted fix

Accepted first fix when a smart hub disconnects on 5GHz Wi-Fi:
• Verify signal and band stability at the hub’s exact location (cabinets/walls matter).
• Check whether the router uses a single SSID with band steering (Smart Connect) and whether 5GHz DFS channels are enabled.
• Look for patterns in timing (evenings/overnight) that match heavier Wi-Fi use or router “auto-optimization.”
• Confirm steady power (no switched outlets or power-strip toggles) before considering resets or re-adding the hub.

Why a smart hub can drop off 5GHz after a router change

Many Roku messages are short (“There was a problem”) while the useful part is the error code. Roku TV vs Roku HDMI devices can show different wording, and issues can overlap: Wi-Fi connected but no internet (009), can’t join wireless (014/14.30), software update failed (001–005), or HDCP error from an HDMI handshake through a soundbar/AVR. The safest path is to identify the exact bucket first.

How to tell if it’s Wi-Fi coverage, router behavior, or the hub

If the error appears during System Update, it’s usually an update code family. If it appears when connecting to Wi-Fi or checking connection, it’s a network code family (009/014). If you see a purple screen or “HDCP Error Detected,” it’s an HDMI/HDCP handshake chain issue (cable/port/soundbar pass-through). If only one app fails, it’s a channel playback issue. For the safest exact steps on your specific Roku TV model and Roku OS version, use the chat so you don’t accidentally reset or break ARC/eARC.

Smart hub disconnecting on 5GHz — safe checks that narrow the cause

Decode the code, separate the cause, and avoid unnecessary resets.

Fast path: take a photo of the error code, note when it happens (update vs channel vs Wi-Fi vs HDMI), and confirm whether you’re dealing with 009/014 internet errors, 001–005 update errors, or an HDCP/purple screen. Each has a different safe first move. For model-specific menu paths on TCL/Hisense/Sharp Roku TVs and to keep ARC/eARC soundbar control working, use the chat for guided steps.

Disclaimer: This information is AI-generated and intended for general guidance only. Avoid factory resets unless you’re sure what they will erase. For exact menu paths for your device model/version, consult a verified expert or the manufacturer’s support.

Understand what these prompts mean

Getting Started Is Easy

Ask for help, 24/7

Members enjoy round-the-clock access to verified Experts for Roku TV error codes, channel playback issues, Wi-Fi/internet troubleshooting, software update failures, and HDMI-HDCP recovery.

Expert will respond in minutes

We match you with an Expert who can interpret Roku codes (009, 014.30, 003), diagnose HDCP purple-screen issues, and guide safe menu steps for your exact Roku TV model.

Save time & money

Avoid unnecessary factory resets, lost logins, and broken ARC/eARC soundbar controls. Get the safest first fix for your specific error.

FAQ

Why did my smart hub start disconnecting suddenly?

This often starts after a router replacement, firmware update, or a change to Wi-Fi settings like band steering. A hub in a cabinet or behind walls may be affected more than phones. Start by noting what changed and when the dropouts happen.

Did this happen after a router update or “Smart Connect” setting?

It can. Some routers automatically move devices between 2.4 and 5GHz or change channels to reduce congestion. Certain hubs don’t recover smoothly from those changes, especially when the signal is borderline.

Is this a settings issue, Wi-Fi coverage, or hub hardware?

Many cases are coverage or router-behavior issues rather than failed hardware. Testing signal stability right at the hub location is a strong clue. Hardware is more likely if it drops even with strong signal and stable power.

Can this be checked safely at home without resetting the hub?

Yes. You can review the hub’s location, confirm steady power, and read router details like the 5GHz channel and whether DFS is enabled. Avoid changing multiple settings at once. Consider stability over speed if 5GHz is inconsistent where the hub sits.

Sources

Matt Verified Icon
Matt ● replies in < 1 min
Technician Expert
⭐⭐⭐⭐⭐ Trusted by 27,000+ customers
Avatar
Alex · Expert's Assistant
5 Tech Support Specialists are online right now.