Android TV technician helping fix device discovery issues

Steve H.

Expert ★★★★★ 27,853 satisfied customers

Specialities: Android TV & Google TV, Wi-Fi & Ethernet, HDMI-CEC / ARC, Bluetooth pairing, Chromecast / casting, USB & storage detection

Android TV not discovering devices on Wi-Fi, Bluetooth, HDMI or network — what’s really wrong

Technician avatar Technician
Hey! We’ll track down why your Android TV is not discovering devices and get everything pairing and showing up again. A few details so we don’t guess:
• Brand/model of the TV or box (Sony Bravia, Philips, TCL, Hisense, Xiaomi, NVIDIA Shield, Chromecast with Google TV, etc.)?
• What exactly isn’t detected: Wi-Fi networks, Bluetooth headphones or soundbar, HDMI devices (console, Fire Stick, cable box), USB drives, or cast / screen-mirroring devices?
• Did this start after a system update, factory reset, new router, or moving the TV?
• Any messages like “No devices found”, “No signal (check HDMI)”, “No Wi-Fi networks available”, “No Bluetooth devices found”, or “No devices on this network”?
The more detail we have, the easier it is to fix an Android TV that can’t find Wi-Fi, Bluetooth or HDMI devices instead of rebooting randomly.
Customer
It’s a Sony Android TV. After a recent Android TV update and a factory reset, it stopped discovering devices properly. The TV doesn’t see my 2.4 GHz home Wi-Fi, Bluetooth headphones don’t show up when scanning, and sometimes my PS5 on HDMI says “no signal” until I unplug the TV. The same devices work fine with my phone and another TV.
Technician avatar Technician
Got it — that’s a textbook case of Android TV not discovering devices after an update or reset.
Under the hood there are a few “layers” that can break:
• Wi-Fi discovery: region/band changes, hidden SSIDs, or router settings like MAC filtering can make your Android TV not find any Wi-Fi networks even though other devices see them.
• Bluetooth discovery: Bluetooth or Location may be off, or the TV’s Bluetooth stack glitched after the update, so it can’t find Bluetooth devices even if they’re in pairing mode.
• HDMI / CEC handshake: after updates, HDMI-CEC (Bravia Sync) and resolution settings can change, so the TV doesn’t detect HDMI devices until you reseat cables or power-cycle.

We’ll:
1) Stabilise Wi-Fi and make sure the TV can see your home network again.
2) Fix Bluetooth device discovery for headphones and soundbars.
3) Sort out HDMI input detection so the console doesn’t randomly show “no signal”.
If anything still won’t show up, we’ll do targeted resets instead of another full factory reset.
Customer
Right now the Android TV can see my neighbour’s Wi-Fi but not mine, and the Bluetooth scan says “no nearby devices” even when my headphones are in pairing mode. Also, the TV sometimes doesn’t recognise my HDMI soundbar either. It feels like the TV just stopped discovering devices correctly after that reset.
Technician avatar Technician
Let’s start with Wi-Fi — when an Android TV cannot find your Wi-Fi network but sees others, the issue is usually with router settings or how the SSID is broadcast.
Step 1 — Make sure the TV is allowed to see the network
1) On the router, confirm the SSID is broadcast (not hidden) and that there’s no MAC filtering or “Allow list” blocking new devices.
2) If you renamed the Wi-Fi recently, keep the name simple (letters/numbers, no emojis). Android TV sometimes struggles with unusual characters.
3) If your router has 2.4 GHz and 5 GHz with different names, try connecting the TV to 2.4 GHz first — some older Android TVs don’t like 5 GHz channels above 48.

Step 2 — Refresh Wi-Fi discovery on the TV
• On the TV, go to Settings > Network & Internet and toggle Wi-Fi off, wait 10 seconds, then on again.
• Select “See all networks” or “Rescan” so it forces a new scan.
• If it still won’t show, unplug the TV from power for 60 seconds, then plug it back in and scan again.
These steps usually fix an Android TV not discovering Wi-Fi networks after a firmware update or reset.
Customer
After a reboot and rescanning, the TV finally sees my Wi-Fi again and connects. But Bluetooth is still a problem. The Android TV isn’t finding my headphones or game controller, even though they show up on my phone instantly.
Technician avatar Technician
Perfect — Wi-Fi discovery is back, now let’s fix Android TV not finding Bluetooth devices.
Step 3 — Clean Bluetooth scan and pairing
1) On the TV, open Settings > Remotes & Accessories (or Bluetooth). Make sure Bluetooth is turned on and the TV is “discoverable”.
2) Put the headphones and controller into pairing mode (LED blinking, often by holding the power or Bluetooth button for a few seconds).
3) On the TV select “Add accessory” or “Pair new device” and wait up to 30–45 seconds.
4) If you see “no devices found”, turn Bluetooth off and on again on the TV, then try once more.

Step 4 — Reset Bluetooth if Android TV still can’t discover devices
• Unplug the TV for 10–30 seconds, plug it back in, and retry pairing.
• If your TV has “Reset Bluetooth” or “Reset network & Bluetooth”, run that — it clears stuck pairings that block new devices.
• On some models, clearing cache/data for “Bluetooth” and “Bluetooth MIDI Service” apps in Apps > Show system apps also helps when Android TV won’t find any Bluetooth accessories.
Once one accessory pairs and reconnects reliably, the rest usually follow the same pattern.
Customer
After unplugging the TV and resetting Bluetooth, my headphones finally showed up and paired. The controller works too. But HDMI is still flaky — sometimes the PS5 isn’t detected and the TV shows “no signal” until I switch inputs a few times or power-cycle everything.
Technician avatar Technician
When an Android TV is not detecting HDMI devices consistently, it’s usually an HDMI-CEC or handshake problem, not a dead port.
Step 5 — Get HDMI device discovery stable
• Make sure the console is plugged directly into the TV (no splitter) with a decent HDMI 2.0/2.1 cable.
• On the TV, set the correct HDMI input manually instead of “Auto”.
• In Settings > HDMI-CEC / Bravia Sync, toggle CEC off, restart the TV, then toggle it back on — this often fixes an Android TV not discovering devices over HDMI-CEC.
• On the console, set the resolution to a safe value (e.g. 1080p) and test; if that’s stable, go back up to 4K.

If one HDMI port is still unreliable, try a different HDMI input on the TV for a day. That tells us if it’s a port-specific fault or a general handshake issue.
Customer
HDMI is more stable now after changing the port and turning CEC off and on. One more thing: the Android TV still doesn’t see my NAS or media server on the network, and sometimes my phone can’t cast to the TV, saying “no devices available”. Is that related to the TV not discovering devices on the network?
Technician avatar Technician
Yes, that’s the “network side” of Android TV not discovering devices — things like casting targets, DLNA servers and NAS boxes.
Try this:
• Ensure the TV and NAS/phone are on the same network and same subnet, not guest Wi-Fi or separate VLANs.
• In the router, turn off “AP isolation”, “Client isolation” or similar — these features stop devices from seeing each other even when they’re online.
• On the TV, check that Chromecast / built-in casting is enabled under Google/Device settings.
• Restart the TV, the router and the NAS/phone in that order.
Once the network allows device-to-device traffic, Android TV usually starts discovering cast devices and network storage again without extra apps.
Customer
Turning off AP isolation on the router and rebooting everything did the trick. Now the TV shows the NAS in my media app and my phone can cast YouTube to the Android TV again. Is there anything I should change so I don’t have to redo all this after every Android TV reset or software update?
Technician avatar Technician
Definitely. A few habits make Android TV device discovery problems much less likely:
Preventive setup for Android TV
• Keep your main home Wi-Fi SSID and password stable; avoid hiding the SSID or changing it after every router update.
• Use a single home network for TV, phone and NAS (no casting from guest networks).
• Don’t overload the TV with dozens of paired Bluetooth devices; remove accessories you don’t use so Bluetooth discovery stays fast.
• If an update offers “improve HDMI compatibility” or “Bluetooth stability”, run it, but restart the TV after the update completes.
• Instead of a full factory reset, start with network / Bluetooth / HDMI-CEC resets for specific issues — they’re faster and keep your apps logged in.
These steps make it far less likely that your Android TV will stop discovering devices every few months.
Customer
What if after a reset or update the TV still doesn’t discover anything — no Wi-Fi, no Bluetooth devices, and HDMI shows “no signal” on all ports? Could that be a hardware problem with my Android TV?
Technician avatar Technician
That’s the “worst-case” version of Android TV not discovering devices at all, and yes, hardware can be involved — but we rule out settings first.
• If no Wi-Fi networks appear on any router, even a phone hotspot next to the TV, the Wi-Fi module or antennas may be faulty.
• If Bluetooth won’t turn on or never shows any devices after a reset, the Bluetooth radio could be damaged.
• If every HDMI port shows “no signal” with multiple known-good cables and devices, the HDMI board may have failed.

At that point, the most realistic options are:
• Use Ethernet and a streaming stick (Fire TV, Chromecast, Roku) as a workaround for broken Wi-Fi/Bluetooth on the TV.
• Arrange a service check if the set is under warranty.
• For older TVs, replacing the panel isn’t usually cost-effective — adding an external Android TV or streaming box is cheaper and restores device discovery.
If you’d like, we can walk through a quick checklist live to decide if your TV needs repair or just smarter settings.
Customer
After going through all these steps, Wi-Fi and Bluetooth work again, HDMI inputs detect my PS5 and soundbar, and my phone can cast to the TV. Basically my Android TV is discovering devices properly again. Thanks a lot for the help!
Technician avatar Technician
Summary: when an Android TV is not discovering devices, fix each layer in turn: Wi-Fi (network visibility and router settings), Bluetooth (reset pairing and radio), HDMI (cables, ports and CEC), and network discovery for casting and NAS. If one category still fails after targeted resets, we check for hardware faults and simple workarounds like external boxes. Not sure which menu your TV has? Open the chat and an expert will walk you through the exact steps for your Android TV model.

Quick answer: the accepted fix

Accepted fix when Android TV is not discovering devices: restart the TV from power, then reconnect it to a visible home Wi-Fi network. Turn Bluetooth on, reset pairings and add one test device (headphones or controller). Reseat HDMI cables, switch to a known-good port and toggle HDMI-CEC. Finally, disable AP isolation on the router so casting, phones and NAS devices can be discovered on the same network.

Why Android TV stops discovering devices after updates or resets

Most Android TV device discovery problems fall into three categories: Wi-Fi configuration changes, Bluetooth glitches, or HDMI / network discovery issues. After a software update or factory reset, the TV can switch Wi-Fi bands, forget region settings or run into router options like hidden SSIDs and MAC filtering, so it can’t find your home network even while other networks show up. Bluetooth services may restart in a bad state, leaving Android TV unable to find Bluetooth headphones, soundbars or controllers until the radio is reset. HDMI firmware updates can also change CEC behaviour and resolution, causing the TV to not detect HDMI devices consistently until ports and cables are reseated and settings adjusted.

How to test if Android TV device discovery is really fixed

After you apply the fixes, leave your Android TV connected for a while and test each type of device. Check that the TV automatically reconnects to your home Wi-Fi after a restart and that you can browse apps and stream without errors. Pair Bluetooth headphones and a controller, then power-cycle both to confirm Android TV rediscovers them and reconnects without needing to pair again. Switch between consoles or streaming sticks on HDMI inputs to see if they are detected every time. Finally, try casting from your phone and browsing a NAS or media server to make sure your Android TV sees devices on the same network reliably.

Android TV not discovering devices — quick troubleshooting tips

Most cases are fixed by cleaning up Wi-Fi, Bluetooth, HDMI and network discovery settings.

Quick path: confirm your home Wi-Fi SSID is visible, connect Android TV and turn off AP isolation in the router. Reset Bluetooth on the TV, then pair one accessory at a time. Reseat HDMI cables, try another HDMI port and toggle HDMI-CEC if external devices are not detected. When Android TV still fails to discover devices after these steps, focus on targeted resets (network, Bluetooth, CEC) before doing another full factory reset.

Disclaimer: This information is AI-generated and intended for general guidance only. For advice specific to your Android TV or Google TV model, router, and connected devices, please consult a verified expert on Whizz-Tech before making decisions.

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FAQ

Why is my Android TV not discovering Bluetooth devices?

If Android TV can’t find Bluetooth headphones, speakers or controllers, Bluetooth or Location may be turned off, the accessory may not truly be in pairing mode, or the TV’s Bluetooth stack may have glitched after an update. Turn Bluetooth off and on again, restart the TV from power, then try pairing one accessory at a time from Settings > Remotes & Accessories.

Why can’t my Android TV find my home Wi-Fi network?

When an Android TV cannot find your Wi-Fi but sees other networks, your router might be hiding the SSID, using MAC filtering, or broadcasting on channels or bands the TV doesn’t support. Make sure the SSID is visible, avoid unusual characters in its name, and try the 2.4 GHz band first, then rescan for networks on the TV.

Why does my Android TV say “no signal” for HDMI devices?

If Android TV is not detecting HDMI devices and shows “no signal”, it’s often an HDMI-CEC or handshake issue, or a bad cable or port. Manually select the HDMI input, reseat or replace the cable, test another HDMI port and toggle HDMI-CEC / Bravia Sync off and back on in settings.

When should I reset or service my Android TV for device discovery issues?

If Android TV still doesn’t discover Wi-Fi, Bluetooth or HDMI devices after targeted resets (network/Bluetooth/CEC) and testing different cables and routers, a full factory reset is the last software step. If even that doesn’t restore device discovery, the Wi-Fi/Bluetooth module or HDMI board may be faulty, and a professional service check is recommended.

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