The short version
- 01Check whether your code has numbers in brackets after it — if so, that is a different page.
- 02Restart the device: unplug it, wait a minute or leave it unplugged for three, then power on.
- 03Sign out through Get Help on the Netflix screen, then sign back in.
- 04Restart the modem and router for 30 seconds if signing out changes nothing.
- 05Reinstall the Netflix app on a Fire TV, or set DNS to automatic on a console, then reinstall.
- 06Return any custom modem, VPN, proxy or DNS settings to their defaults before escalating.
Raw message
UI-800-3
Likely causes
- Stored Netflix data on the device that has gone stale and needs refreshing.
- A network issue that stopped the app opening in the first place.
- Custom modem, VPN, proxy or DNS settings that Netflix asks you to return to defaults.
- A Samsung TV whose Smart Hub needs resetting, which only Samsung can do.
- Set-top box firmware that is behind, or a box that needs a factory reset.
- A code with extra numbers in parentheses, which is a different error with different steps.
What UI-800-3 tells you
Netflix describes this one as information stored on your device needing to be refreshed, or a network issue having stopped Netflix from opening. The first half is what separates it from a plain connection error: the app is holding data that has gone stale, and the remedy is to make it fetch that data again rather than to fix anything about your network.
That is why signing out and back in appears in Netflix's steps here and not in its steps for NW-2-5. Signing out discards the stored state and forces the app to rebuild it, which is precisely the situation this code describes.
Check for numbers in brackets first
Netflix attaches a warning to this code that is easy to miss and saves a lot of wasted effort: if the error shown on your device also has numbers in parentheses, search for that exact code in the Help Center to get the right steps. UI-800-3 (100018), UI-800-3 (307006) and UI-800-3 (205040) are separate articles with separate remedies.
So read the whole string off the screen before starting. The steps below are for a bare UI-800-3. If yours carries a bracketed number, the general advice will not necessarily be wrong, but Netflix has written something more specific for it.
The general sequence
For a TV or a TV-connected device, Netflix's order is: restart the device, restart the home network, sign out of Netflix, and restore default connection settings. The restart uses the same timings as elsewhere — unplug, press the power button once and wait a minute, or leave it unplugged for three minutes — and the network restart is the familiar 30 seconds for modem and router.
Signing out is done from inside the app rather than from a settings menu: press back from the Netflix home screen, or go left to the profile icon, then Get Help, then Sign out, confirm, and sign back in. On a streaming device Netflix's shorter version is simply to turn the device off, unplug it if it has a power cable, leave it off for 15 seconds and turn it back on.
Restoring default connection settings is the step people skip, and it is the one that catches a whole class of causes: Netflix asks you to reset custom modem settings, VPN or proxy settings, and custom DNS settings. A VPN left running is a common and entirely invisible reason for this code.
Where the steps differ by device
Fire TV gets a reinstall. Netflix's route is Home, then Settings, Applications, Manage All Installed Applications, Netflix, Uninstall — then press the Netflix button on the remote and select Download. That is the most direct way to clear stored data on that platform.
Consoles get a DNS check followed by a reinstall. On PlayStation, confirm DNS is set to Automatic, then uninstall and reinstall the app. On Xbox One the DNS setting is under the Xbox button, then Settings, General, Network settings, Advanced settings; on Xbox 360 it is the Guide button, then Settings, System Settings, Network Settings.
Two device types Netflix hands off rather than fixes. On a Samsung TV, it directs you to contact Samsung support to reset Smart Hub. On a set-top box, it directs you to the device manufacturer, since the box may need a firmware update or a factory reset. In both cases the reset that clears the stored data is not one the Netflix app can perform.
Sources and review notes
Checked on . Based on Netflix's help article for UI-800-3. The device-specific routes, menu paths and the warning about bracketed codes are Netflix's. Menu names change with TV and console firmware, so check Netflix's current article for your device. Glitchary is independent of Netflix, Samsung, Sony, Microsoft and Amazon.