Minecraft errors are common, given it has a large user base using it simultaneously. This article will solve the most common error internal exception java.io.ioexception that many players have been facing lately. Before moving to the solutions, it is important to know what it means. So we have described what internal exception java.io.ioexception stands for. There are also multiple solutions for “existing connection was forcibly closed by the remote host error.” After trying out the basic fixes, you can’t opt for advanced troubleshooting for internal exception java.io.ioexception.
You were only hoping to make some grand strides in your Minecraft Fantasy world but got blocked by an unknown connection error called internal exception java.io.ioexception. We feel you!
But don’t worry. There are many solutions to tackle this problem, and you don’t have to be a geek for that.
Here is our simple explanation for internal exception java.io.ioexception and solutions to fix the problem.
What is the internal exception Java IOException?
You will see this problem when your computer tries to create a connection to your selected Minecraft server. Sometimes the connection is disrupted while going from the server to your computer. This internal exception java.io.ioexception is not a faulty bug in Minecraft. There is something that can be either a program on your machine, a bad setting on your network, or a server problem blocking your connection. There is a possibility of an error in the Java code of your browser. It causes some disturbance in the internet connection. That is why it is not working if you have already tried uninstalling and reinstalling Minecraft.
How do you fix an existing connection that was forcibly closed by the remote host error?
If you are facing a block with a message like the existing connection was forcibly closed by the remote host error, there are few things you can do about it.
Many gamers could resolve the issue by simply deactivating either the Windows Firewall or the antivirus software installed on their PC.
Fix 1: Steps to disable Firefox.
- Select Settings from the Start menu.
- And then go to Update and Security > Windows Security.
- Scroll down and select your Firewall and network protection.
- Then select the active network which you are currently using by clicking on it.
- Toggle to switch off the Windows Firewall.
Fix 2: Steps to disable Antivirus Software
- Similarly, go till Windows Security still step 2 of the above fix.
- Scroll down to Virus& Threat Protection
- Go to Manage Settings
- Switch off Real-Time Protection
Fix 3: Restart Network
Since internal exception java.io.ioexception is a type of network error, restarting try to re-establish the connection and remove the issue.
- If the router or modem is powered on, remove it to disable it.
- Also, disconnect the Ethernet wire and wait for a few minutes.
- Reattach the Ethernet cable > switch router power on
- Wait for the router to return to normal for all LED indicators.
- Connect to the network again.
These are the basic fixes for an error similar to internal exception java.io.ioexception. Try to open Minecraft now. If you see the same problem, try the following.
Fix 4: Disable the Public access for JavaTM Platform SE Binary
- Press Windows Key + R
- In the command box, type appwiz.CPL
- Press OK
- From the Control Panel, choose System and Security
- Click on Windows Defender Firewall on the left side
- Search the JavaTM SE binary platform.
- Now mark it as Private if not checked already
- Press OK to save the changes
Advanced Troubleshooting of the java.io.ioexception issue
If you use exe Minecraft Launcher to open Minecraft, you may probably face the internal exception java.io.ioexception. This happens because the launcher uses the older version of Java by default rather than using the latest version. Using this launcher is the only option as it’s the only one coming from the official site. You may have to force the excess launcher to use the up-to-date version of JAVA in this case.
Solution 1: Use an updated version of JAVA.
- Install the most recent version of Java from the official site.
- Navigate to the Program Files directories.
- Copy the location of the folder where you installed, to the clipboard.
- Launch the Minecraft exe now.
- Select “Edit Profile”
- Check “executable” under “Java Settings (Advanced)” to edit it.
- Modify the beginning of the path address up to “bin” with the address you copied. Like this: Files\Java\jrei.9.0.111\bin\javaw.exe
- Click the “Save Profile” button.
Solution 2: Modification of the Google DNS server on your router
Another way to solve this could be the internal exception java.io.ioexception could be to switch between DNS servers as your current server, or your computer might cause the problem cannot detect it. In your router/modem administrative panel, you can locate your DNS settings to change them manually. There are two values you have to put if you are using IPV4.
These are the steps to change DNS servers for internal exception java.io.ioexception for Windows.
- From the control panel, go to Network & Internet.
- Choose Network and Sharing Center and then click on Change adapter settings.
- Whichever you are using, Ethernet or WI-FI, you need to right-click and select properties for both. You may be asked for a password after this step.
- Navigate to the Networking tab. Select IPv4 or IPv6.
- Properties>Advanced> DNS Tab
- Press OK
- After this step, you can change the IP addresses using the numbers mentioned above for IPv4. For IPv6, use
- 2001:4860:4860::8888 or
If you face the internal exception java.io.ioexception error in macOS, you will find the DNS setting in the System Preferences> Network. The rest of the steps are identical.
Solution 3: Change the Settings for Server-Side View Distance
Reducing the server’s view distance helped several gamers for internal exception java.io.ioexception error.
- Stop the server if it is running.
- Go to Files and Select Cong Files.
- From Server, Settings scroll down to View Distance
- Could you change it to a lower number? If it is 12, change it to 5.
- Save the changes
I hope at least one of these solutions helps you do away with the internal exception java.io.ioexception error for once and all. Let’s now play Minecraft in peace.
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