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401

Hisense Smart TV

Severity: Moderate

Source: OnlyErrorCodes.com — Every error code. One place.

Hisense TV Error Code 401 — Network Connection Required

What Does This Error Mean?

Error 401 on Hisense TVs running VIDAA means a feature you tried to use needs internet — and the TV currently doesn't have it.
Connect to Wi-Fi or Ethernet first.
If you're already connected, the network has dropped or VIDAA's authentication has expired.
Restart the TV and re-check the network.

Affected Models

  • Hisense U7K
  • Hisense U8K
  • Hisense U6K
  • Hisense A6 series
  • Hisense VIDAA U6 smart TV

Common Causes

  • TV not connected to any network (Wi-Fi or Ethernet)
  • Wi-Fi has dropped silently — TV thinks it's connected but isn't
  • VIDAA authentication token expired
  • Router blocking VIDAA's outbound HTTPS traffic
  • Hisense regional server temporarily unreachable

How to Fix It

  1. Check Wi-Fi or Ethernet status.

    Settings > Network > Internet Connection.
    Should show 'Connected'.
    If it shows anything else, that's the issue — fix the network first.

  2. Restart the TV.

    Hold Power on the remote until the TV restarts.
    Or unplug for 60 seconds and plug back in.
    Cold restart clears any stuck VIDAA session and forces fresh authentication.

  3. Test the network connection.

    Settings > Network > Test Connection.
    The TV runs a basic check — DNS, internet, server reachability.
    Failures here tell you exactly which layer needs attention.

  4. Set DNS to 8.8.8.8 manually.

    Settings > Network > IP Configuration > DNS Setting > Manual.
    Enter 8.8.8.8.
    Most multi-app 401 cases trace to a flaky router DNS — switching to Google's public DNS bypasses it.

  5. Sign out and back into VIDAA.

    Settings > Account > VIDAA Account > Sign Out.
    Then sign back in.
    This forces re-authentication.
    If the previous session was corrupt, signing out clears it.

Frequently Asked Questions

Will Hisense error 401 prevent watching cable channels?

No.
401 only affects features that need the internet — streaming apps, voice control, content recommendations.
HDMI inputs, antenna channels, and basic TV functions all work normally without a network connection.

Why does Hisense 401 happen mostly after a Wi-Fi password change?

When you change Wi-Fi password, the TV doesn't auto-update — it tries the old password and fails.
The TV may show 'connected' if it was previously connected, but new requests fail with 401.
Forget the network in TV settings and re-enter with the new password.