🎮 Game Error Codes What it means & how to fix it

Zenless Zone Zero Errors

Zenless Zone Zero connection errors ('Invalid Network Request', 'cannot connect to server', 'download failed') are the usual miHoYo/HoYoverse networking problems — the client can't reach the game services cleanly. The most reliable fixes are a different network route or Cloudflare's WARP. Here's what each common error means and the fastest fix.

Error codes

Invalid Network Request The client's request to the server was rejected

Cause: A network route or ISP issue that HoYoverse's servers reject — common with certain home networks.

Fix:
  1. Try a different network — e.g. a mobile hotspot to establish the connection, then switch back.
  2. Install Cloudflare's 1.1.1.1 WARP and enable it while playing (a long-standing fix for miHoYo titles).
  3. Restart your router and confirm the game is fully updated in HoYoPlay.
Cannot Connect to Server The client can't reach the game servers

Cause: Server maintenance/outage, an unstable connection, or a firewall block.

Fix:
  1. Check ZZZ server status on the official social channels first.
  2. Power-cycle your router and disable any VPN/proxy.
  3. Allow the game through your firewall and flush DNS (ipconfig /flushdns).
Download Failed / Update Error A game download or update couldn't complete

Cause: An interrupted or throttled download in HoYoPlay, or not enough disk space.

Fix:
  1. Restart the HoYoPlay launcher to resume the download.
  2. Switch to a wired connection or a public DNS (8.8.8.8 / 1.1.1.1).
  3. Free up disk space and temporarily disable antivirus that may block the writes.
Login / Network Error The sign-in couldn't complete over the network

Cause: Peak-time server load or an unstable link during the login handshake.

Fix:
  1. Wait and retry during busy launch/banner periods.
  2. Update the game and apply any pending hotfixes in HoYoPlay.
  3. Try Cloudflare WARP or a different network if it persists.

Fixes that work for most Zenless Zone Zero (PC, mobile & PlayStation) errors

  1. Check the game's server status first (official status page, or the studio's support/X account) — most named connection errors are a maintenance window or outage, and no local fix will help until servers are back.
  2. Restart the game and your PC/console, and power-cycle your router — a fresh connection clears the majority of temporary login and connection errors.
  3. On PC, allow the game and its launcher through your firewall and antivirus, and disable any VPN or proxy — these block the authentication handshake behind many 'can't connect' codes.
  4. Flush your DNS (Command Prompt: ipconfig /flushdns) or switch to a public DNS like 8.8.8.8 / 1.1.1.1 if the game can't reach its servers.
  5. Verify/repair the game files (Steam: Properties -> Installed Files -> Verify; Epic: repair) if the error points at a corrupted install or update.

FAQ

How do I fix the 'Invalid Network Request' error in Zenless Zone Zero?

This error means your request to the server was rejected, usually a network-route or ISP issue. Try a different network first — for example use a mobile hotspot to establish the connection, then switch back — and install Cloudflare's 1.1.1.1 WARP and enable it while playing, which is a long-standing fix for miHoYo titles. Restart your router and make sure the game is fully updated in HoYoPlay.

Why can't Zenless Zone Zero connect to the server?

'Cannot connect to server' is usually server maintenance/outage, an unstable connection, or a firewall block. Check ZZZ server status on the official social channels first, power-cycle your router and disable any VPN, then allow the game through your firewall and flush your DNS.

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