LG TV Apps Not Working: Complete Diagnostic, Fixes & When to Repair or Bin It
You press the Netflix button. Nothing. Or the app opens and crashes. Or every app you try refuses to load. Or the app store itself won’t open. The TV works fine otherwise, but the apps are unusable.
Here’s the thing most people get wrong: they assume the TV has failed and start looking for a replacement. In reality, app faults are almost always software or network issues, not hardware. And in the vast majority of cases they’re fixed by checking the network, clearing a cache, or reinstalling the app — all free.
Only when those are ruled out does the fault move to the Wi-Fi module or the main board. Even then, an external streaming device is often a cheaper and better solution than a repair.
The single most useful diagnostic is whether one app fails or every app fails. That one observation splits the entire diagnosis in two, and everything below is organised around it.
For the full index of LG TV faults — sound, power, picture, remote, and connectivity — see LG TV Problems: Troubleshooting Guide to Every Common Fault →
Quick Checks Before You Open Anything
Run through these first. They cost nothing and they resolve the overwhelming majority of app faults.
Is it one app or every app? One app — app-specific fault. Every app — network, webOS, or memory. This is the fork in the road.
Is the TV actually connected to the internet? Go to Settings → Network → Wi-Fi Connection and check the status. A TV showing “connected” can still have no working internet.
Test the connection directly. Open the TV’s web browser and try loading a site. If it fails, the problem is the network, not the apps.
Has your Wi-Fi password changed recently? If it has, and the TV wasn’t updated, every app will fail. This is more common than people expect.
Did it start after a firmware update? That points to a webOS software fault rather than a network issue.
Is your router or internet working? Check another device on the same network before assuming the TV is at fault.
Power cycle the TV properly. Unplug at the wall, wait 60 seconds, plug back in. Not standby — a full power cycle. This clears a stuck webOS state that causes a lot of intermittent app failures.
Is the app still available? Some apps are discontinued and stop working permanently. Check the app store.
If none of those resolve it, work through the causes below.
1. Network Connectivity Fault
Why it stops apps working: If the TV can’t reach the internet, no app will work. This is the single most common cause of “every app has stopped working,” and it’s free to fix.
Symptoms:
Every app won’t load or crashes
Apps fail after a network change
The app store won’t load
Apps work intermittently
How to test it:
Go to Settings → Network → Wi-Fi Connection and confirm the TV is connected. Then open the TV’s web browser and try to load a page. A connected TV that can’t load a page has no working internet, which is a different problem from no connection. If the TV is connected and browsing works, the network isn’t your fault — move to the next section.
Cost: $0.
Repair or Bin? Repair. Free.
2. Changed Wi-Fi Password or Router Settings
Why it stops apps working: The TV stores your Wi-Fi credentials. If the password changes and the TV isn’t updated, it can’t reconnect — and every app fails, because none of them can reach the internet.
Symptoms:
Every app stopped working at the same time
The TV shows as disconnected or “no internet”
The fault started after a router change, a password change, or a new ISP
Other devices on the network work fine
How to test it:
Go to Settings → Network → Wi-Fi Connection and reconnect to your network, entering the current password. If the TV was set up with an old password, this resolves it immediately.
Cost: $0.
Repair or Bin? Repair. Free.
3. DNS Fault
Why it stops apps working: The TV can be connected to the network but unable to resolve domain names — so the connection looks fine, browsing sometimes works, but apps fail. Switching to a public DNS often fixes it.
Symptoms:
The TV is connected but apps won’t load
Apps load slowly or buffer constantly
Some apps work and others don’t, with no clear pattern
The web browser loads some sites but not others
How to test it:
Go to Settings → Network → Advanced Settings (or Wi-Fi Connection → Edit) and change the DNS setting from automatic to manual. Set the primary DNS to 8.8.8.8 (Google) or 1.1.1.1 (Cloudflare), and the secondary to 8.8.4.4 or 1.0.0.1. Save, reconnect, and test the apps.
Cost: $0.
Repair or Bin? Repair. Free, and it resolves a surprising number of “connected but nothing works” cases.
4. App Cache or Data Corruption
Why it stops the app working: Apps accumulate cached data over time, and that cache can become corrupt. A corrupt cache makes the app crash on launch, fail to load, or show a blank screen. Beyond the cache, the app’s settings and login data can also corrupt.
This is the most common cause when one app fails and the others are fine.
Symptoms:
One app won’t load or crashes
The app opens then closes immediately
The app shows an error message on launch
The app shows a blank screen
Other apps on the TV work normally
How to test it:
Go to Settings → All Settings → General → System → Storage, find the app, and clear its cache and data. If the TV’s menu doesn’t offer a per-app cache clear, uninstall the app and reinstall it from the LG Content Store — that resets everything. Reopen the app and check.
Cost: $0.
Repair or Bin? Repair. Free.
5. webOS Software Fault
Why it stops apps working: A firmware bug can break app functionality, and it often appears immediately after an update. The hardware is fine; the software is misbehaving.
Symptoms:
Apps fail after a firmware update
Multiple apps affected at once
Erratic behaviour — apps sometimes work, sometimes don’t
Other TV functions affected as well
How to test it:
First check whether a newer update is available — Settings → All Settings → General → About This TV → Check for Updates. A subsequent update often fixes a bug introduced by the previous one. If there’s no update, perform a factory reset: Settings → All Settings → General → Reset to Initial Settings. Note what you’ll lose — Wi-Fi credentials, picture and sound settings, app logins, and any recordings. Write down your settings first.
Cost: $0.
Repair or Bin? Repair. Free, and it resolves software faults.
6. Insufficient Memory
Why it stops apps working: webOS TVs have limited RAM. Too many background apps running at once can crash the system or prevent an app launching.
Symptoms:
Apps crash on launch, particularly when several are open
Apps load slowly
The TV’s menus feel sluggish
The fault is intermittent, worse after heavy use
How to test it:
Close background apps — on most LG TVs, press and hold the back button or use the recent apps menu to close everything running. Then launch the app again. If it works after closing background apps, memory was the cause. Power cycling the TV also clears the running state.
Cost: $0.
Repair or Bin? Repair. Free.
7. App Server Outage
Why it stops the app working: Sometimes the fault is entirely at the app’s end. Netflix, YouTube, and BBC iPlayer all have outages, and no amount of troubleshooting on your TV will fix one.
Symptoms:
One app fails while others work
The app shows a connection or service error
The fault appeared suddenly and affects other people too
The app worked fine yesterday
How to test it:
Check whether the service is down — search for the app name plus “down” or “outage,” or check the service’s status page. Then test the same app on your phone or another device on the same network. If it fails there too, it’s the server, not your TV. Wait it out.
Cost: $0.
Repair or Bin? Neither. Nothing to fix.
8. App Deprecation
Why it stops the app working: Some apps are discontinued. When a developer stops supporting an app on a particular platform, it stops working permanently — and it may disappear from the store or from your home screen entirely.
Symptoms:
Apps disappear from the home screen
An app no longer appears in the LG Content Store
The app fails permanently with no error message
The app worked fine until a specific date
How to test it:
Search the LG Content Store for the app. If it’s no longer listed, it’s been removed for your platform. Check the developer’s own site for a discontinuation notice. There’s no fix — the option is a different app, or an external streaming device that supports it.
Cost: $0.
Repair or Bin? Neither. The app is gone.
9. Failed Wi-Fi Module or Main Board
Why it stops apps working: If the TV’s Wi-Fi module has failed, the TV loses network connectivity entirely. A main board fault can also affect network processing. These are rare — and they’re the last things to diagnose, not the first.
Symptoms:
The TV shows no networks available at all
Wi-Fi settings won’t save or the TV won’t connect to any network
Wired Ethernet works but Wi-Fi doesn’t
Every app fails and the browser fails too, with a known-good network
How to test it:
Test with a wired Ethernet connection if your TV has a port. If Ethernet works and Wi-Fi doesn’t, the Wi-Fi module has failed. If neither works, and you’ve confirmed the network and DNS settings are correct, the fault is more likely the main board.
Cost: Wi-Fi module $30–$70. Main board $60–$150.
Repair or Bin? Repair on a TV under five years old. But consider the cheaper alternative first — a $30 to $100 streaming stick bypasses the TV’s hardware entirely and gives you the same apps, often faster.
Which Symptom Points To Which Fault
This is the fastest diagnostic in the whole post:
What you’re seeing Likely cause
Every app fails, TV not connected Network fault or changed password
Every app fails, TV connected DNS fault or webOS software fault
One app fails, others fine App cache corruption or server outage
Apps crash on launch Memory or cache
Apps fail after a firmware update webOS software fault
Apps disappear from the home screen App deprecation
No networks available at all Wi-Fi module failure
Wired works, Wi-Fi doesn’t Wi-Fi module failure
Repair vs Replace: The 50% Rule
If the repair costs more than 50% of the price of a new equivalent TV, replace it.
Typical repair costs:
Fault Typical cost DIY-friendly?
Network, password, DNS $0 Yes
App cache or data $0 Yes
webOS software fault $0 Yes
Memory $0 Yes
App server outage $0 N/A
App deprecation $0 N/A
Wi-Fi module $30–$70 Partly
Main board $60–$150 Partly
External streaming stick $30–$100 Yes
New TV cost: $300–$1,500 for LCD ranges; OLED sets run higher.
When to repair:
The fault is network, cache, software, or memory — which covers most cases
TV is under 5 years old with a Wi-Fi module or main board fault
Repair cost is under half the new TV cost
When to bin (or bypass):
TV is over 5 years old with a main board fault
The Wi-Fi module has failed on an older set — a streaming stick is usually the better spend
Repair cost approaches half the new TV cost
The alternative worth considering: on any TV where the network hardware repair is borderline, a $30 to $100 streaming stick bypasses the TV’s internals entirely. It gets the same apps, usually runs faster than an older webOS set, and sidesteps the repair. For an older TV with a failed Wi-Fi module, that’s often the smarter spend.
What You Can Safely Do Yourself
Safe DIY checks and repairs:
Confirm whether one app or every app is affected
Test the TV’s internet connection via the web browser
Reconnect to Wi-Fi with the current password
Change the DNS to a public provider
Clear an app’s cache and data, or reinstall the app
Close background apps to free memory
Check for and install a software update
Check whether an app is down or discontinued
Test with a wired Ethernet connection
Factory reset the TV (noting what you’ll lose first)
Add an external streaming device
Technician required:
Wi-Fi module replacement
Main board replacement
Any repair involving the power supply
Safety note: a factory reset erases your Wi-Fi credentials, picture and sound settings, app logins, and any recordings. Write down your settings and note your app logins before you reset. If the TV is under warranty, check before opening it — and note that a factory reset is a software action that won’t void it.
FAQ
Why have all my LG TV apps stopped working?
The most common cause is a network fault. Check the TV’s internet connection first. If the TV is connected but apps still fail, try changing the DNS settings.
Why does one app fail but others work?
This points to an app-specific fault, such as a corrupt cache or a server outage. Clear the app’s cache, reinstall it, and check the app’s status for outages.
Why do my LG TV apps crash on launch?
This is usually a memory or cache issue. Close background apps, clear the cache, or reinstall the app.
Why do my LG TV apps stop working after an update?
This is usually a software or compatibility fault introduced by the update. Check for a subsequent update, or perform a factory reset.
Why do my LG TV apps work on my phone but not my TV?
That confirms the app server is fine and the fault is on the TV side — a network, DNS, cache, or webOS issue. Work through the network checks first.
Why won’t my LG TV connect to Wi-Fi at all?
If no networks appear, or the TV won’t connect to any network, the Wi-Fi module may have failed. Test with a wired Ethernet connection — if Ethernet works and Wi-Fi doesn’t, the module has failed. See the Wi-Fi post below for the full connection diagnostic.
Is it worth repairing an LG TV with app problems?
Usually yes, and often it’s free. Most app faults are software or network issues, not hardware. If the Wi-Fi module or main board has failed, an external streaming device is often the better solution.
Where to Go Next
This post has covered the full app chain and the decision framework for repair versus replacement. Depending on your situation, one of these is your next step:
If you’ve tested the network, cleared the cache, and the apps still fail, the dedicated guide works the app chain in order — network connectivity testing, Wi-Fi and DNS troubleshooting, app-specific testing, cache clearing and reinstallation, webOS software troubleshooting, memory management, app server outage checks, and the Wi-Fi module and main board diagnosis — with the repair threshold for each component.
Get the LG TV Apps Not Working guide — $3.95 →
If the apps fail because the TV won’t connect to your network at all, that’s a connectivity fault with its own diagnostic sequence.
Get the LG TV Won’t Connect To Wi-Fi guide — $3.95 →
If you want the full LG TV fault reference in one place, the LG TV Fault Diagnosis Guide covers every common fault — picture, sound, power, apps, and connectivity.
Get the LG TV Fault Diagnosis Guide — $7.95 →
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