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How to Fix Arknights: Endfield Unable to Connect to Server

Maya Tran By Maya Tran
date Last updated: 2026-01-06 clock 4 min

Arknights: Endfield is Hypergryph's new major game, expanding the Arknights universe into a large-scale 3D strategy RPG. In the limited tests, all players are attracted to its expansive gameplay systems and well-crafted world-building.

However, as more players flood into the Endfield, a common issue occurs - disconnections from the server. This guide will explain the meaning of these connection errors, their causes, and solutions to help you return to the battlefields of Arknights as quickly as possible.

Arknights: Endfield Game Booster

Why Does Arknights: Endfield Fail to Connect to Server?

Does a server connection failure mean the server has gone down? Not necessarily. There are more reasons for connection failures than you might imagine:

  1. Server overload/maintenance: During updates or peak times, servers may be overloaded, causing slow responses or rejected connections.
  2. Regional routing: Cross-region players (e.g., EU/NA) can experience high latency, packet loss, or login/auth failures due to long routing paths.
  3. Local network: Unstable Wi‑Fi, ISP throttling, DNS issues, or temporary packet loss can prevent the game from connecting even if general internet use seems fine.
  4. Firewall/security software: Firewalls, antiviruses, or router security settings may block the game's network requests.
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How to Fix Unable to Connect to Server in Arknights: Endfield

Check Server Status First

Before trying other methods to resolve the issue, please first make sure the server status of Arknights: Endfield is normal. You can check the server status by the following methods:

  • Official site / status page: check the game’s official website or any server-status page for announcements.
  • In‑game notices / launcher: open the launcher or game client and read the news/maintenance notices.
  • Official social media: check the game’s official Twitter/X, Facebook, or Weibo for live updates.
  • Official Discord / Steam / community pages: look at pinned announcements or recent posts on the official Discord, Steam hub, or subreddit.
  • Third‑party outage trackers: search sites like DownDetector for recent reports from other players.

Fix Server Connection with GearUP

The route your connection takes to the Arknights: Endfield servers is usually not optimal, especially for long cross‑region connections — this is often the key reason for connection failures. To fix this, GearUP provides the simplest solution: it can automatically diagnose your network and switch routing nodes to find a stable, fast route and handle sudden network jitters, addressing the connection problem at its root. GearUP’s biggest advantage is its ease of use — you don’t need to perform any network configuration:

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  1. Search for Arknights: Endfield.
    How to Fix Arknights: Endfield Unable to Connect to Server
  2. Choose a server; “Auto” means GearUP will connect you to the currently best server.
    How to Fix Arknights: Endfield Unable to Connect to Server
  3. Start boosting; you can view the connection status in real time, then launch the game.
    How to Fix Arknights: Endfield Unable to Connect to Server

Adjust Firewall

  1. Open Windows Security from the Start menu.
  2. Go to Firewall & Network Protection.
  3. Click Allow an app through firewall.
  4. Select Change settings, then click Allow another app.
  5. Browse and add the Arknights: Endfield game client or launcher.
  6. Make sure both Private and Public boxes are checked.
  7. Click OK to save the changes.

This ensures the game is not blocked when attempting to connect to the server.

Other Tips

  1. Do not run bandwidth‑heavy programs in the background, such as live streaming, downloads, or media streaming.
  2. Try to connect to a stable network signal; if you’re playing on a PC, use a wired connection whenever possible.
  3. Do not use a VPN — a VPN will not improve connection stability and may even increase latency.

Arknights: Endfield Connection Issues — Quick FAQ

Q1: Do you still need to connect to the server in single‑player mode?

Yes. Arknights: Endfield requires players to remain connected to the server at all times to ensure real‑time data synchronization.

Q2: Can increasing internet speed improve connection stability?

Not necessarily. Although Arknights: Endfield requires a constant online connection, the amount of real‑time data transmitted is not large, so it does not demand high bandwidth; what matters more is the stability of the network connection.

Q3: Is GearUP safe?

GearUP adjusts the network nodes used for connection and does not affect game data security or game rules, so there is no risk—you can use it with confidence.

Conclusion

To ensure uninterrupted gameplay and resolve login issues, we strongly recommend that players disable firewall restrictions, check server status, or directly download GearUP to optimize their network environment before playing Arknights: Endfield.

About The Author
Maya Tran Maya Tran

Maya Tran, a market expansion expert at GearUP, is well-versed in the global gaming market and player demographics. She understands the needs of gamers and provides professional network optimization services through strategic business partnerships for numerous games. By addressing lag and high ping issues caused by disparities in game server deployment, she enhances the gaming experience for players around the world.

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