Minecraft is a sandbox video game first released in 2011 that\u2019s still very popular today. It is considered as the single best selling game of all time with more than 176 million copies sold. Estimates place that there are around 112 million active monthly players. Although this is a solid game there are instances when certain issues can occur. In this latest installment of our troubleshooting series we will tackle the Minecraft io.netty.channel.AbstractChannel$AnnotatedConnectException error issue. How To Fix The Minecraft io.netty.channel.AbstractChannel$AnnotatedConnectException Error Before performing any of the recommended troubleshooting steps listed below its best to reboot your computer. This will refresh the windows 10 operating system and will usually fix most of the common issues caused by a software glitch. The io.netty.channel.AbstractChannel$AnnotatedConnectException error issue usually occurs when the game can\u2019t connect to a server. The issue might not be isolated to a single server but all servers thus preventing you from playing the game. Listed below are the troubleshooting steps that you will need to do to fix this problem. Reboot the router The first thing you will have to do in this case is to turn off the router. Wait for a minute before turning it back on. While you are waiting, make sure that the ethernet cord is plugged in securely on both ends of your computer and the router ( this will only apply if you are using a wired connection). Make sure that your computer can go online then run Minecraft. Check if the io.netty.channel.AbstractChannel$AnnotatedConnectException error issue still occurs. Make sure the game is not blocked by the firewall A firewall works by filtering information coming from the internet. There\u2019s a possibility that your computer firewall is blocking the connection to the Minecraft server. To fix this you will need to add the game to the exception list of the firewall. Click on the Start menu and select the Settings icon.From Settings, click on the \u201cUpdates & Security\u201d option.Select the \u201cWindows Security\u201d from the left pane and select the \u201cFirewall & Network Protection\u201d option.Select the \u201cAllow an App through Firewall\u201d option.Click on \u201cChange Settings\u201d and select \u201cYes\u201d on the warning prompt.Select the \u201cAllow another app\u201d from the options and click on \u201cBrowse\u201cNavigate to the game installation directory and select the game and the launcher executable.Repeat the above process again and this time navigate to the directory where you have the Minecraft servers installed.Open \u201cMaxwell\u201d folder and then the \u201cMinecraftServer\u201d folder.Allow both the\u00a0 Java executables located inside the folder in the same way.Repeat the process again and instead of clicking \u201cAllow another app\u201d after selecting the \u201cchange\u201d option simply scroll down the list of apps available and allow all the \u201cJava Platform SE Binary\u201d options through both the \u201cPrivate\u201d and \u201cPublic\u201d networks.Open the Minecraft launcher, try to connect to the server and check to see if the issue persists. Check if the io.netty.channel.AbstractChannel$AnnotatedConnectException error issue still occurs. Manually add IP address and port If your internet connection uses a dynamic IP address ( constantly changes) and not a static IP address ( does not change) then the game might not be able to make a connection to the server. Here\u2019s how to fix this is this is what\u2019s causing the problem. Click on the search bar on the Windows toolbar and type in "Command Prompt".Right\u2013click on the icon and select "Run as Administrator".Type in \u201cipconfig\u201d and take note of the "IPV4 Address"Using the file explorer go to the \u201cMinecraft Servers folder>Maxwell (some random numbers)> MinecraftServer\u201d and open the \u201cServer Properties\u201d text document.Take note of the "Server Port" number listed here.\u00a0Open up Minecraft and navigate to the \u201cPlay Multiplayer\u201d option.Select the server which you want to join by clicking on it and select \u201cEdit\u201d from the below options.The "Address" needs to be the IPV4 address that we noted and the port number for example "XXX.XXX.X.X:YYYYY" where X is the IPV4 address and Y is the port. Check if the io.netty.channel.AbstractChannel$AnnotatedConnectException error issue still occurs.