When your IPTV is not working, the cause is almost always one of a handful of problems, and most of them take minutes to fix. Start with the five-minute checklist below, then jump to the symptom that matches what you’re seeing. Each section lists the quickest fixes first, with links to our detailed guides.
- Restart your modem, router and streaming device.
- Try a different channel, then a different device.
- Run a speed test on the device that’s streaming.
- Check that your plan or trial hasn’t ended.
- Update your player app.
Find your problem
| What you see | Most likely cause | Go to |
|---|---|---|
| “Failed to authorize” or “invalid login” | Login details, the server URL or an expired plan | Login problems |
| The picture pauses, freezes or drops quality | Wi-Fi, internet speed or the device | Buffering |
| A black screen, or no picture at all | The video decoder, stream format or the channel | Black screen |
| A picture but no sound | Audio output settings or the audio track | No sound |
| An empty guide or wrong times | EPG data or the time zone | TV guide |
| One channel or movie won’t play | That stream or an outdated channel list | Channels |
| The app closes or won’t open | App data, storage or an old version | App crashes |
| Nothing works on any device | Your internet connection or a service outage | Outages |
Can’t log in or “failed to authorize”
- Re-enter your username and password. Both are case-sensitive, and a single extra space breaks them.
- Enter the server URL exactly as your provider sent it, including http:// and the port number, with nothing after it.
- Check that your plan or trial is still active.
- Close the app on any other device that uses the same login.
Our full guide to the failed to authorize error covers nine fixes and a two-minute browser test that shows whether your login works. Not sure which kind of login you have? See Xtream Codes vs. M3U.
Buffering or freezing
- Restart your router and device, then test your speed on the streaming device: about 10 Mbps for HD and 25 Mbps for 4K.
- Switch to Ethernet or 5 GHz Wi-Fi, and pause other big downloads.
- Clear your player’s cache and try the other video decoder in its settings.
- If only 4K channels buffer, play the HD version of the channel instead.
Our IPTV buffering guide has ten fixes, including settings for TiviMate and Fire TV.
Black screen or no picture
- Try another channel. If others play, that channel may be offline for a while; some channels only broadcast during live events.
- Switch the video decoder. In your player’s playback settings, switch between hardware and software decoding.
- Change the stream format. In IPTV Smarters, open Settings and try a different stream format, such as MPEGTS or HLS.
- Check 4K and HDR. If your TV or device doesn’t support a 4K or HDR channel, play the HD version instead.
No sound or out-of-sync audio
- Check the volume and mute settings on the TV and on any soundbar or receiver.
- Try another channel. If it has sound, the first channel’s audio track may be the problem; many players let you pick a different audio track during playback.
- If you use a soundbar or receiver, set your streaming device’s audio output to PCM or stereo as a test. Surround formats sometimes cause silence.
- If the sound is out of sync, restart the stream. Some players also have an audio delay setting.
Missing or wrong TV guide
- Refresh or update the EPG in your player’s settings. After a first login, the guide can take a few minutes to fill in.
- If the times are off by hours, check the time zone on your device and in your player.
- Using an M3U link? You may need to add a separate EPG link, while an Xtream Codes login loads the guide automatically.
Our IPTV EPG guide covers every guide problem in detail.
Some channels or movies won’t play
- Refresh your playlist or channel list in the app so it picks up any changes.
- Try the same channel on another device. If it fails everywhere, it may be down for a while, so try again later.
- For movies and series, update the app or try another player; some players handle certain video formats better than others.
The app crashes or won’t open
- Force stop the app and clear its cache. On Fire TV, go to Settings, then Applications, then Manage Installed Applications.
- Free up storage by uninstalling apps you don’t use.
- Update the app, or uninstall it and reinstall it from an official source.
- Restart the device fully by unplugging it for 30 seconds.
IPTV Smarters Pro not working
- Stuck loading or “failed to authorize”: check the server URL and port, then follow our failed to authorize fixes.
- Black screen: change the stream format in Settings, or choose a different player in the app’s player settings.
- Old saved data: delete the user, clear the app cache and add the user again.
- Where you got it: install the official app, now listed as Smarters Pro, only from your device’s app store or the developer’s website, because modified copies often break. Our IPTV Smarters Pro guide lists the official download for each device.
TiviMate not working
- Playlist won’t load: open Settings, then Playlists, select your playlist and update it. If it still fails, remove it and add it again with your Xtream Codes login.
- Guide missing: open Settings, then EPG, and update the guide.
- Buffering: increase the buffer size and try the other video decoder in the playback settings.
- “HTTP data source exception”: the server refused the stream. The response code shows why: 401 or 403 usually means an expired plan or too many connections, 404 a channel that moved, and 500 to 504 a server problem.
- Premium features locked: TiviMate Premium is a separate purchase from the app’s developer, not part of your IPTV plan.
Setting TiviMate up from scratch? Our TiviMate guide covers Android TV and Fire TV and explains each error code.
Is IPTV down for everyone?
If nothing works on any device while your other apps and websites do, the service itself may be having a temporary problem. Wait 15 to 30 minutes and try again, and check your email or your provider’s support channel for updates. If your other apps don’t work either, the problem is your internet connection: restart your modem and router, or contact your internet provider.
When to contact your provider
If you’ve worked through the steps above and the problem stays, contact your provider with the details they’ll need: your device and app, the exact error message, the channel or title that fails, when it happened and a speed test result. SubscribeIPTV customers can contact us and we’ll take it from there. Still choosing a service? Our checklist for choosing an IPTV service in the USA shows how to test reliability during a free trial.
More IPTV guides
- IPTV buffering: 10 fixes that stop freezing
- IPTV Smarters failed to authorize: 9 fixes
- How to fix a missing IPTV TV guide
- How to install IPTV on Firestick
- The best IPTV player for every device
- What IPTV is and how it works
IPTV troubleshooting FAQ
Why is my IPTV not working?
The most common causes are login problems, a weak Wi-Fi connection, an expired plan, outdated app data and channels that are temporarily offline. Restart your equipment, check your plan and try another channel or device to narrow it down.
Why is IPTV Smarters Pro not working?
Usually because of a wrong server URL or login, old app data or a stream format your device doesn’t handle well. Add the user again, clear the app cache and try a different stream format in Settings.
Why is TiviMate not working?
Most TiviMate problems come from a playlist that needs updating, guide data that hasn’t loaded or buffer settings. Update the playlist and EPG in Settings, or remove the playlist and add it again.
How do I know if my IPTV service is down?
If no channels work on any device while your other apps and websites do, the service may be down. Wait a little and check your provider’s support channel before you change your settings.
Why does IPTV work on my phone but not my TV?
That means your login is fine and the problem is the TV device or its connection. Restart it, clear the app’s cache, update the app and use Ethernet or 5 GHz Wi-Fi.
Why do some IPTV channels not work?
Individual channels can go offline for a while or only broadcast during live events. Refresh your channel list and try again later, and if a channel stays down, let your provider know.


