• The problem might be caused by a temporary issue on your computer. You can fix it by restarting it.
  • If you have any similar application running, like the Epic Games Launcher, close it before trying to sign up for Steam.
  • You should also ensure you’re using the latest version of the Steam client.

Basic Fixes

  • Restart the Steam client: The first step to fixing the issue is to restart the Steam client. This will eliminate any temporary bug or glitch causing the problem.
  • Switch to Google Public DNS: The problem can also be caused by a DNS issue. In this case, switch to Google Public DNS to resolve the problem.
  • Disable VPN: Ensure you’re not connected to a VPN, as it might affect your connection and cause the issue.

Fix 1: Flush DNS Cache

One of the main reasons CAPTCHA might not be working in Steam is corrupt DNS cache data. The solution is to flush the DNS cache data . You can do that by following the below steps:

Step 1: Open the Start Menu , type Command Prompt in the search bar, and choose Run as administrator from the right pane.

Typing Command Prompt in Windows Search - 1

Step 2: Type ipconfig /flushdns and press Enter .

ipconfig command in CMD - 2

After completing the process, restart your computer and check for the issue.

Flushed data screen in CMD - 3

Fix 2: Disable IPv6

IPv6 is the latest IP version that offers better security and allows more IP addresses than its predecessor. However, there are still many internet connections that don’t support IPv6.

When you forcefully configure those connections for IPv6, you will face connectivity issues in different apps like Steam. To fix that, downgrade to IPv4. Here’s how:

Step 1: Open the Start Menu , type View network connections in the search, and choose Open .

View network connections option in Start menu - 4

Step 2: Right-click on your connection and choose Properties from the context menu.

Properties option in View network connections window - 5

Step 3: Uncheck the IPv6 box and check the IPv4 box. Then, click OK .

IPv6 box in Properties window - 6

Fix 3: Disable Proxy

If you use a proxy server, it might be causing the issue you’re experiencing. To disable the proxy server, follow these steps:

Step 1: Open the Start menu , type Internet Options in the search bar, and press Enter .

Step 2: Click the Connections tab > LAN settings .

LAN Settings option in Internet Options - 7

Step 3: Uncheck the Use a proxy server for your LAN box. Then, click OK .

Use a proxy server for your LAN box in Internet Options - 8

Fix 4: Reset Winsock

If the above solutions weren’t helpful, try resetting Winsock. Resetting Winsock will eliminate any problem interfering with the communication between programs and the network services. To reset Winsock, launch Command Prompt as an administrator, type the following command, and press Enter .

netsh winsock reset
Reset Winsock command in Command Prompt - 9

Fix 5: Change the Steam Language

Steam supports various languages, but if you use it in a different language than the one native to your current location, it might be why you’re getting the Your response to the CAPTCHA appears to be invalid error. We know this may sound strange, but it has caused problems for some users.

To change the Steam language, visit the Steam website , click on the Language dropdown menu, and select the native language of your current country.

Language drop down menu - 10

Fix 6: Use the Steam Website

If you’re facing a problem while signing up through the Steam app, try signing up through the Steam website. Here’s how:

Step 1: Visit the Steam website and click the login option.

Login option on the Steam website. - 11

Step 2: Click the Create an account option under the New to Steam option. Then, create your account, and you should no longer face the problem.

Create an account option in the Steam client - 12

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