After investigating this particular issue, it turns out that there are several different scenarios that might cause this error code. Here’s a shortlist of potential culprits:

Method 1: Flushing the DNS cache

According to a lot of affected users, this type of MapleStory 2 error is often type related to an inconsistency with the DNS (Domain Name System). If your network device assigned a bad range, this might end up affecting communications between your local installation of MapleStory 2 and the game server. In case this problem is still applicable, you should be able to fix this problem by using an elevated Command Prompt co clear the current DNS cache. Several affected users encountering the same problem have confirmed that they managed to get rid of the issue by flushing the current DNS cache. If you don’t know how to do this, follow the instructions below to reset your DNS Cache: If the same 10053 error code is still occurring, move down to the next potential fix below.

Method 2: Changing the DNS

If flushing your DNS didn’t work in your case, you might be dealing with a bad DNS range. Most of the time, this is reported in instances where the default DNS allocation method is being used. If this scenario is applicable and you suspect that you are facing this problem due to a DNS inconsistency, you should be able to fix this problem by making the switch to a different set of Domain Name Addresses (either google’s DNS or the Level 3 range open for public use). Several affected users have managed to fix this problem by using the Network Connections window to change the default DNS values. If you’re unsure on how to do this by yourself, follow the instructions below to change the default DNS to a controlled range and resolve the 10053 error code: In case you are still seeing the 10053 error code, move down to the next potential fix below.

Method 3: Disable Windows Antivirus / Firewall

According to some affected users, this problem can also occur due to some antivirus interference that ends up inhibiting communications between your game installation and the game server. In most cases, this will happen due to a false positive. If this scenario is applicable and you’re using a 3rd party suite like Kaspersky or Avira, disabling the real-time protection before launching the game should ensure that you’re no longer getting disconnects with the 10053 error code. With most 3rd party AV / Firewall suites that are installed at a system level, you will be able to disable the real-time protection simply by right-clicking on the tray-bar icon and look for an option that allows you to disable the real-time protection. However, in case this scenario is not applicable because you’re using the default security suite (Windows Defender / Windows Firewall), you’ll need to disable the real-time protection from the Windows security menu before launching the game. Here’s how to do this: In case the same problem is still occurring, move down to the next potential fix below.

Method 4: Excepting maplestory2.exe from your firewall

If you’re not comfortable with disabling the real-time protection of your antivirus, there’s also the option of whitelisting the game’s executable in your firewall/ antivirus settings. Note: In case you’re using a 3rd party firewall, search online for specific steps on whitelisting the executable. If you’re still using the native Windows Firewall, follow the instructions below to ensure that you stop it from interfering with the communications between the game and the game server. Here’s what you need to do:

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