- Head over to the installed game directory on your PC.
- Right-click on the OnceHuman.exe application.
- Select Properties > Click on the Compatibility tab.
- Enable the Run this program as an administrator option.
- Click on Apply > Select OK to save changes.
3. Check Your Internet Connection
Ensure to check out your internet connection properly before focusing on other aspects because issues with the internet may trouble you most of the time. If you have a wireless network, try switching to a wired one or vice versa to cross-check the connectivity improvements. Sometimes using a different network can also help in accessing the game servers. In case, you’re unable to get into the multiplayer mode, try contacting the ISP (internet service provider) to get technical assistance. You can also ask your ISP to change the IP address.
4. Check the Server Downtime Status
You can also try checking the server status of Once Human by visiting the official @OnceHuman account on X (formerly known as Twitter) or Discord channel to receive all the server outage notifications. If other players are also facing server outages, there is nothing to do at your end. Make sure to wait for a couple of hours before trying to join the multiplayer mode.
5. Check for Once Human Updates
The chances are high that somehow your game version becomes outdated for a while and you haven’t installed the latest update yet. Therefore, it’s recommended to check for game updates available at your end. Check the steps below to do so:
For Steam:
- Open Steam > Go to the Library.
- Click on Once Human from the left pane.
- If an update is available, click on Update.
- Wait for some time until the update is completed.
- Once done, reboot the PC to apply changes.
For Epic Games Launcher:
- Open the Epic Games Launcher > Go to Library.
- Click on the three dots icon next to Once Human.
- Set the Auto Update option to ON.
- It should automatically install the available update.
6. Repair the Game Files
Try repairing the game files installed on your PC to fix any kind of corrupted or missing game files. Such game files can cause issues with the multiplayer connectivity at your end. So, repairing the problematic game files is required. Luckily, popular game clients provide an option to do this natively.
For Steam:
- Launch the Steam client > Click on Library.
- Right-click on Once Human from the list.
- Click on Properties > Go to Local Files.
- Click on Verify Integrity of Game Files.
- Wait for this process to complete.
- Once done, reboot the PC to apply changes.
For Epic Games Launcher:
- Open the Epic Games Launcher > Click on Library.
- Click on the three-dots icon next to Once Human.
- Next, click on Verify.
- Wait for the process to complete.
- Finally, restart the system, and run the game again.
7. Update the Network Driver
It seems that a couple of players have encountered outdated network drivers on the PC by following the steps below. An outdated network driver can cause multiplayer not to work.
- Open the Start menu > Search and open Device Manager.
- Double-click on the Network adapters category.
- Right-click on the specific network device.
- Select Update driver > Choose Search automatically for drivers.
- If an update is available, it’ll automatically download and install the latest version.
- Once done, reboot your system to change the effects.
8. Disable Windows Firewall
You may also find that disabling the Windows firewall protection by following the steps below. This specific method comes in handy if you’re unable to connect to the game servers or multiplayer mode.
- Open the Start menu > Search for the firewall.
- Click on Windows Defender Firewall from the search result.
- Now, click on Turn Windows Defender Firewall on or off from the left pane.
- Select the Turn off Windows Defender Firewall (not recommended) toggle.
- You should do the same for both the Private & Public Network Settings.
- Once selected, click on OK to save changes.
- Finally, restart your system to apply the changes.
9. Turn Off Antivirus
The chances are high that somehow your aggressive antivirus protection is blocking the game program while connecting to the multiplayer mode. You can check the steps below to do so:
- Press the Win+I keys to open Windows Settings.
- Click on Update & Security.
- Click on Windows Security from the left pane.
- Now, click on the Open Windows Security button.
- Go to Virus & Threat Protection.
- Click on Manage Settings.
- Turn Off the Real-time Protection toggle.
- If prompted, click on Yes to proceed further.
Please Note: If you’re using any other third-party antivirus program on your PC, turn off the real-time protection feature.
10. Do Not Use VPN
It’s suggested not to use any VPN (Virtual Private Network) servers to avoid potential issues with the multiplayer modes. You should disable the VPN service manually at your end to check for the issue again.
11. Clear the DNS Cache
You should clear the DNS cache data on your Windows computer by following the steps below. It might be several issues with the network connectivity or multiplayer connection.
- Open the Start menu > Search for cmd.
- Right-click on Command Prompt from the search result.
- Now, click on Run as administrator.
- Click on Yes, if UAC prompts.
- Type the following command and hit Enter to flush DNS:
ipconfig /flushdns
- You’ll get the “Successfully flushed the DNS Resolver Cache.” message.
- Now, type the following command and hit Enter to register DNS:
ipconfig /registerdns
- Then type the following command and hit Enter to release the ipconfig:
ipconfig /release
- Next, type the following command and hit Enter to renew the ipconfig:
ipconfig /renew
- Type the following command and hit Enter to reset Winsock:
netsh winsock reset
- Once done, close the command prompt window.
- Finally, reboot the PC to apply changes.
Last but not least, you should contact Steam Support, Epic Games Support, or the official @OnceHuman X account to get a better resolution for the respective problem. Make sure to submit a support ticket for the issue so that the developers can investigate it further.
That’s it, guys. We hope you’ve found this troubleshooting guide useful. If you’ve any queries, you can comment below.
