Fix Roblox Error 400

Roblox Error 400

Are you facing Roblox Error 400 issue on your Windows computer? If you want to fix it, know all the troubleshooting methods provided in this section.

Roblox is a wonderful platform where you can create your own video games using Roblox Studio. All over the globe, there are more than 65 million players who use this Roblox app.

But some people are complaining about this Roblox. They are seeing Roblox Error 400 issue. Until you resolve this error, it can’t allow the players to create the games.

One says that error code 400 occurs due to firewall & antivirus apps, internet connectivity issues, cache and cookies, and others.

To know more about this problem, browse the following paragraphs and apply the steps correctly.


Problem Overview: Roblox Error 400

Nowadays, players are thinking creatively and want to create new kinds of games on their devices. For that, there are several apps, and one of the popular platforms is Roblox.

As we know, Roblox is a global gaming platform that enables us to create any game. You just need to download and install this application on your systems.

Roblox is compatible with multiple platforms, such as Windows, iOS, Android, etc. While using this program, you can see the following error message.

Bad Request 400 – There was a problem with your request.

It is a network connection error that mainly occurs due to your fault or from the Roblox server. If this problem happens, you can’t create the games until you fix it.

In most cases, the following are the major reasons that cause this Roblox Error 400 issue.

  • Corrupted browser cache & cookies
  • The file size may be large
  • Roblox servers are down
  • Network connectivity issues or damaged router
  • Your Firewall and Antivirus might be stopping the requests of Roblox.

You can find the exact cause of this Bad Request 400 issue and also fix it with the simple methods given below.


Related Problems: Roblox Error 400

Like Bad Request 400 error, you may also face various other error codes. Some of them are given below, with their solutions to fix them.


Basic Troubleshooting Steps: Roblox Error 400

If you want to resolve this Bad Request 400 – There was a problem with your request issue, let’s use the basic methods given below.

  • Check the Roblox Servers

If the servers are under maintenance, they will not provide service to the Roblox users. In case if you’re accessing Roblox while maintenance is going on, you come across this Bad Request 400 issue.

In this situation, the only solution is to wait until the servers are back up. If the Roblox Error 400 happens even though the servers are working correctly, you need to check out the below methods to fix it.

  • Reset Internet Options

Sometimes, resetting the internet options on your Windows 10 is the best way to get rid of this Roblox Error 400. If you don’t know how to do it, read the below instructions.

  1. Press Windows + R -> Type control panel -> Hit Enter.
  2. Go to the Search box -> Type Internet -> Select Internet Options from the results.
  3. Under the Internet Options window, go to the Advanced tab.
    Click on the Advanced tab
  4. At the bottom, you will find the Reset Internet Explorer settings section. In that, click the Reset button to reset the internet settings.

Once the resetting process is finished, check the Roblox Error 400 is fixed.


Steps To Fix Roblox Error 400 Issue

If the above methods didn’t resolve this Bad Request 400 issue of Roblox app, then go through the advanced methods given below.


  • Step 1

Disable Windows Defender Firewall

Your default security suite, Windows Defender Firewall, might be stopping the requests of Roblox. To overcome this Roblox Error 400, you need to disable the inbuilt firewall on your Windows 10.

  1. Press Windows + R -> Type control panel -> Hit Enter.
  2. You need to locate the Windows Defender Firewall on the list.
    Now click on Windows Defender Firewall
  3. Click the Turn Windows Defender Firewall On or Off tab placed on the left-side panel.
    Click on Turn Windows Firewall on or off
  4. On the right-side panel, click the radio button beside Turn Off Windows Defender Firewall (Not Recommended) on both Private & Public Network Settings.
    Turn off Windows Firewall both Public and Private Networks
  5. Save the changes by clicking the OK button.

Now, check the Roblox Error 400 is disappeared on your PC or still persists.


Also Read:- Fix Minecraft Won’t Launch [Quick Troubleshooting Guide]


  • Step 2

Turn Off your Antivirus

In addition to the above, your antivirus software is also one of the reasons for causing Bad Request 400 – There was a problem with your request.

To solve it, you have to turn off the antivirus temporarily. Go to the Taskbar on your computer. Locate the antivirus icon and right-click on it. Now, select the Disable the antivirus temporarily option.

If the bad request error is not yet fixed, then re-enable the antivirus and go through some other steps to solve it.


  • Step 3

Clear Browser Cache & Cookies

In addition to the above, the cache and cookies on your web browser also prevent Roblox requests. To resolve this Roblox Error 400, clear the cache and cookies by following the below steps.

  1. First of all, launch your default web browser (Google Chrome) on your Windows system.
  2. Go to the three dots (Customize and Control Google Chrome) placed on the top-right corner -> Click Settings.
    Click on the settings icon in the window
  3. Navigate to the Privacy and Security section -> Now, click the Clear Browsing Data option.
    Click on the Clear Browsing data option from the left pane
  4. Select the Advanced tab -> Choose All-Time in the Time Range section.
    Set the time range and click the clear data button
  5. Check all the boxes to select the cookies and other site data, cached images, and files.
  6. Click the Clear Data button.

Now, it removes the cache and cookies completely from your web browser. After deleting, you’ll be signed out from various websites, including Roblox.

Again relaunch Roblox and sign in to your account to check the Bad Request 400 issue is fixed.


  • Step 4

Uninstall & Reinstall Roblox

We have provided all the workarounds that can resolve the Roblox Error 400 on your Windows 10. If none of them helps you, then the only way is to remove Roblox and reinstall it freshly.

  1. Press Windows + R -> Type control panel -> Hit Enter.
  2. Under the Programs section, click Uninstall a Program.
    click on uninstall a program
  3. Locate the Roblox app and select it -> Click Uninstall option.
    select the roblox app and clik on uninstall
  4. If you see any confirmation window, then click uninstall to proceed further.
  5. After uninstalling it, reinstall the Roblox correctly.

Now, check the Bad Request 400 issue occurs again on your computer or not.

Note: You can use the best uninstaller software (IObit Uninstaller) to remove the applications without any leftovers or traces.


Best Printer in 2020
Best Accessories For Laptop: Must Have Laptop Accessories list in 2020
You must consider to pick up some accessories for your laptop to get the best out of your laptop & make it power pack.
Read More


  • Step 5

Fixing Roblox Issue on Mobile Device

Some players use Roblox on their mobile devices. If you want to fix this Roblox Error 400 on your iOS and Android Smartphones, then execute the below instructions.

  1. Firstly, go to the Settings on your mobile phone.
  2. Select the Apps menu -> Now, navigate to the Manage Apps.
  3. On the search box, type Roblox.
  4. Click on the Roblox App Settings to open it.
  5. In the next step, click the Clear Data button to remove the cache data of the Roblox app.

After removing the app data, check the Roblox Error 400 is solved on your mobile phone or not.

If you still face the Bad Request problem with the Roblox app, then you need to check out the contact support section.


Best Wifi Routers
Best Accessories For Laptop: Must Have Laptop Accessories list in 2020
If you are looking for a laptop Backpack & want to know few of the best available Backpack then this guide we’ll help you find one best laptop backpack for yourself.
Read More


Tips To Avoid Roblox Error 400

If you want to avoid the occurrence of this Roblox Error 400 issue, then follow the simple tips listed below.

  • Instead of using a wireless network connection, connect your device to the router using a wired connection so that you can avoid connectivity errors.
  • Before going to use this Roblox gaming platform, you need to check whether its servers are working correctly or down due to maintenance issues.
  • After setting up the Roblox, it is the best option to add this app to your security software, such as firewall and antivirus, so that you’ll never see these issues.


Contact Official Support

Mostly, with one or more methods listed above, users can fix the Roblox Error 400 issue. What if the HTTP bad request error still appears even after using all the techniques?

In such a situation, you need to browse this section. Once you fail to fix the problem after reinstalling Roblox, visit the Roblox community.

If you didn’t find any useful information, then ask for the tech support of Roblox. Contact the customer support team of Roblox and get steps to resolve this bad request 400 error on your Windows 10.


Final Words: Conclusion

On the whole, Roblox is a useful application where you can design or develop your own video game. After creating, you can start playing it on your Windows computer.

If any connection issue occurs or facing the bad request 400 error, fix it by resetting the internet options, removing temp files, turning off the firewall & antivirus, etc.

In addition to that, we are here to clarify all your doubts or queries. You just need to provide your comments on this guide in the below comment box.

Click the subscribe button to get in touch with the latest troubleshooting guides on various PC and Gaming issues.

  • Post last modified:December 23, 2021
  • Post category:Games
  • Post comments:0 Comments

Leave a Reply