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Netflix Streaming apps
UI-800-3 (100018)

How to Fix Netflix UI-800-3 (100018) | VidCapto

When Netflix flashes UI-800-3 (100018), the device reached the servers but could not complete the next step cleanly.

Likely causes

WHY
  • Spotty wireless signal or congestion on the 2.4 / 5 GHz band
  • Time/date skew on the TV breaking secure connections
  • Short-lived service incident on Netflix authentication servers
  • Multiple Google/Amazon logins fighting on the same TV

Fix steps

FIX
  1. Shut everything down, wait one minute, bring the modem/router online first, then the TV, then Netflix.
  2. Check for Netflix updates and firmware patches; install everything pending before testing UI-800-3 (100018) again.
  3. After clearing cache, open Netflix once without playing — let menus load — then start a title.
  4. Switch DNS, disable IPv6 briefly on the router if needed, then retest Netflix.

Note: Unofficial guide based on commonly reported Netflix errors. VidCapto is not affiliated with Netflix.

Quick FAQ

FAQ
Is this an official support page?

No. VidCapto publishes unofficial troubleshooting guides so you can try common fixes quickly.

What does Netflix error UI-800-3 (100018) mean?

When Netflix flashes UI-800-3 (100018), the device reached the servers but could not complete the next step cleanly.

What if the steps don't work?

Try another network (hotspot), reinstall the app, then contact the brand's official support with your exact error code.

Related error codes

MORE

Example scenarios

NOTE

Illustrative scenarios for this error - not live user reviews.

  • Example scenario: guest Wi‑Fi isolation blocked Netflix; moving the device to the main SSID fixed UI-800-3 (100018).
  • Example scenario: signing out of all devices, then only this TV, stopped a stubborn UI-800-3 (100018) on Netflix.

VidCapto is not affiliated with any brands. Applying these steps is the user's responsibility.

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