Like other software, Roblox isn’t expected to be bug-free and always work flawlessly, especially considering the platform’s complexity and user count.
However, some Roblox bugs and errors are disruptive and worrying, concerning users about why they’re suddenly unable to play the game in which they invested a lot of time and sometimes even funds.
This guide covers the 517 Roblox error that prevents users from joining a game and is often reported on forums and community support websites.
If you’ve recently encountered this problem and require a solution, keep reading to learn more.
Let’s get started.
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The Problem Explained
Roblox’s 517 error is a server-sided error occurring when the player tries joining a server or a private game someone on their friend list hosted.
There are two known messages associated with this error, and both point to the same error (though the root of the problem can be different):
- This game has ended. (Error Code: 517)
- This game is currently unavailable. Please try again later. (Error Code: 517)
It isn’t clear why the 517 Roblox error occurs, but there are two confirmed “triggers” for it based on what community members reported.
The first possible cause is:
The game’s servers are “late” updating the user’s session, so the game thinks the user is already in another session, and prevents them from joining one more.
In such a situation, the message shown with the error is: “This game is currently unavailable. Please try again later. (Error Code: 517)”.
The second possible cause is:
The user tried joining a game that doesn’t have an updated status as “closed” yet was shut down recently by the owner. If you disconnect and refresh the game’s status you should notice it’s no longer available. Then, you can proceed with joining a different game.
In such a situation, the message shown with the error is: “This game has ended. (Error Code: 517)”.
Although this error looks a tad complicated to fix at first, it’s not difficult to solve it, as there are available solutions known to have helped many users.
Find out more in the following sections.
Fix 1: Ensure The Roblox Servers Are Up And Running
If the Roblox servers are experiencing issues or undergoing unexpected maintenance, you, as a user, may encounter many errors while trying to access the platform or join a server.
That is why, the first recommended move is ensuring the servers are up and running. You can do this on the official Roblox server status webpage.
In case you notice multiple reports of issues, there isn’t much to do besides waiting for the Roblox maintenance team to fix the problem.
However, if there are no reports and the status says “all systems operational,” you may proceed to the sections below.
Fix 2: Wait 15-20 Minutes And Do The Following While Waiting
One of the best ways to fix this problem, although it might come out a bit strange, is to simply “wait it out.”
If the Roblox servers are late confirming the player’s no longer in a game session, there’s nothing else to do besides waiting. Attempting to join another server or experience will simply make the error re-occur.
Users confirmed that the usual wait time for this error to resolve is about fifteen to twenty minutes. So, fully close Roblox and sign out of your account. Then, check the clock (or set a timer) and wait it out.
But, while waiting, we recommend you do something that could potentially fix many network-related issues on your end (which may cause various problems while playing Roblox), and that is flushing your DNS Resolver Cache and restarting the router.
Here’s how to do that:
- Simultaneously press the Windows + S keys on your keyboard to open the Windows Search Box.
- Type Command Prompt, right-click the first result, and choose Run as Administrator, as shown in the images below.
- Now that Command Prompt is open on your screen, type in the following command: “ipconfig /flushdns” and press Enter on your keyboard to initiate it. You will see a confirmation message, as shown in the image below.
Now, it’s time to restart your router.
To do that, find the device’s power switch or button. It’s usually on the backside, but it’s different for all models. When you find it, press/switch it, and the router will shut down. You’ll notice the lights indicating a running network connection stopped working.
Wait for about five minutes, then turn the router back on.
While waiting for the connection to restore, restart your PC.
Once your computer boots up and the connection restores, open Roblox on your computer and sign in to your account. The 517 error should no longer trouble you while trying to join a game.
This method worked for many users, but if it doesn’t help you, there are still others you can try in the following sections.
Fix 3: Clear Your Browser’s Cache Files And Cookies
You use a browser to access the Roblox website, which means you need to ensure there aren’t any issues with it caused by a pileup of corrupt cache data and cookies to have an error-free experience on the platform.
We recommend clearing your browser’s cache and cookies, and if you aren’t sure how, follow the steps below.
Note: This method is for the Chrome browser.
- Open Chrome and click the three vertical dots in the window’s top-right corner. Choose Settings from the list of options on the menu.
- Scroll down until you see the section named Privacy and Security. Click on Clear Browsing Data.
- Check the boxes next to all available options and select All time in the time range field. Then, finish by clicking Clear Data in the bottom-right corner.
Restart your browser and open the Roblox website. The 517 error should no longer occur while trying to join a server.
Fix 4: Clear Roblox’s Cache
Lastly, you can clear the Roblox cache files, which is a method that takes the longest but is guaranteed to fix the problem if it’s not directly related to the Roblox servers.
Here’s how you can clear the Roblox cache files:
- Simultaneously press the Windows + X buttons on your keyboard and choose Run from the list of available options, as shown in the image below.
- In the Run box, type in “%temp\Roblox” and press Enter or the OK button.
- Select all files within the Roblox Data Folder, and delete them.
Now launch Roblox again. The game will generate the cache files anew, and fix any problems that could’ve been caused by a pileup of corrupt cache data.
You should now be able to continue playing without experiencing the Roblox 517 error while attempting to join a server.
The 517 Roblox error can be “triggered” by a few reasons, at least that the community knows of. It’s a disruptive error that prevents the user from joining a game, but luckily, there are solutions for it.
Hopefully, the methods listed in this guide will help you overcome the problem and get back to playing without other interruptions.