Have you encountered the "Connection Lost - Internal Exception java.net.socketexception" error in Minecraft? This error message can be frustrating, especially when you are in the middle of an exciting game. But don't worry, we are here to help you fix this issue.

Verify Minecraft Server Status

This error is usually caused by your own network connection or by the server you’re trying to join. Make sure that the server you are trying to join is running properly. To do so, navigate to this page, where you can verify the server status, player count, and Minecraft version running on the server. Enter the server’s IP address and select Get Server Status.

Get information about the Minecraft server.

Test Internet Connection

If the server is up and running, the issue might be related to your network connection. Make sure to test your connection by visiting Speedtest.net. An average Up & Download speed, without interruption, is essential for a stable gaming experience. Especially your ping should remain below 100ms.

Disable VPN Connection

Account for any VPN service that could be running on your system. Or turn off your VPN while in-game. Make sure to use an ethernet cable to ensure the best possible connection. If you have to use a Wifi connection, restart your router or modem if you haven't done this in a while, and reduce the number of devices connected to the same network.

System Settings > Network & Internet > VPN

End Network Intensive Processes

Open your Task Manager by searching for it in your start menu search. In the Performance tab, open up your Resource Monitor.

In the Network tab, open the Processes with network activity, and after a few seconds, you will see every process using your network connection. This might be your browser running in the background, Steam, or a download bottlenecking your connection. We suggest you only end the processes you know won't break your operating system.

Task Manager > Performance > Open Resource Monitor

Flush DNS Resolver Cache

Open up your Command Prompt by searching for CMD and hitting enter. Use the commands:

ping google.com

This command will check your latency and packet loss to google's servers. If your ping is higher than 100ms or encounters packet loss, you should make a few changes to your connection and follow the subsequent tweaks.

ipconfig /flushdns

This will flush and reset the content of your DNS resolver cache. Using this command can, in some cases, fix server-related issues for Minecraft on your PC.

Change DNS Server Addresses

If you still have server-related issues, you should verify your connection to your ISP and ensure you are using a decent data plan. You can troubleshoot this step by switching your connection to your hotspot.

Next, we will change your DNS server address if your network connection still causes the problem. Open your Control Panel by searching for it in your start menu search. Make sure to View by: Category, and click on Network and Internet.

Next, click Network and Sharing Centre, and select your connection here. This will open up this window containing general information about your connection. Navigate to Properties, and lastly, double-click the Internet Protocol Version 4. Select to Use the following DNS server addresses option, and as your Preferred DNS server, use: 8.8.8.8, and as your Alternate DNS server, use: 8.8.4.4.

For many users, this will fix server errors and other problems for Minecraft, as these are the official public DNS server addresses from Google, which are safe to use.

Update Network Adapter Driver

We suggest updating your Network Adapter’s driver to troubleshoot network-related problems further. To do so, search for Device Manager in your start menu search to open it up. Expand your Network Adapters, right-click the one you are using, and select Update Driver. Finally, click on Search automatically for drivers. This will take a second to download and install the latest Network Adapter driver.

Device Manager > Network adapters > Update driver

Windows Update

You should also ensure that your Windows 11 version is up to date. Search for Update to open up your Check for Updates system settings window. Your settings will open up. Click on Check for Updates, Download or Install Now, and restart your PC after making all these changes to your OS.

End 3rd-Party Applications

Lastly, if you still get the “Connection Lost” error, you most likely have software running on your system that hinders you from playing Minecraft. To fix this, I suggest ending processes in your Task Manager of recently installed programs that can change your files or use up your available resources, such as OBS, Shadowplay, CCleaner, or Adobe applications, to troubleshoot which program is causing the issue.

This error message occurs when you are trying to connect to a server in Minecraft and the connection is lost due to various reasons such as internet connectivity issues, issues with the client or server, or firewalls blocking the connection.
There is no permanent solution to the "Connection Lost - Internal Exception java.net.socketexception" error, as it can occur due to various reasons. However, you can follow the steps mentioned in this article to troubleshoot and fix the issue.
Yes, you can still play Minecraft without connecting to a server by playing in singleplayer mode.
You can determine if the issue is with your internet connection or the Minecraft client by trying to connect to a different server or by checking your internet connection and troubleshooting any issues with it.
If the issue is with the server and not with your client or internet connection, you can reach out to the server support for assistance or try connecting to a different server.