Quick Summary
The error 'java.io.IOException: Server returned HTTP response code: 403 for URL' in Minecraft means your client does not have permission to access the requested resource at that URL. This is generally due to an authentication failure or the server deliberately blocking your request.
Common Causes
- Incorrect Minecraft Account Login: The most common cause is logging into the Minecraft launcher or game with an incorrect account, or an account that doesn't own the game.
- Firewall or Antivirus Interference: A firewall or antivirus program might be blocking Minecraft's access to the internet, specifically to the server or resource URL it's trying to reach.
- Outdated Minecraft Launcher or Game Version: An outdated launcher or game version may not be compatible with the server, or might have bugs related to authentication and network access.
- Server-Side Blocking: The server you are trying to connect to may be blocking your IP address, due to perceived malicious activity or other reasons.
- Corrupted Minecraft Installation: Files within your Minecraft installation may be corrupted, leading to authentication or connection issues.
- VPN Issues: Using a VPN might cause issues if the server blocks VPN connections or if the VPN's IP address is blacklisted.
Step-by-Step Fixes
Method 1: Verify Minecraft Account and Login Show Steps ↓
Step 1: Double-check that you are logged into the Minecraft launcher with the correct Mojang or Microsoft account that owns a valid copy of Minecraft.
Step 2: Log out of the launcher completely and then log back in.
Step 3: If the problem persists, try resetting your Mojang or Microsoft account password.
Method 2: Check Firewall and Antivirus Settings Show Steps ↓
Step 1: Temporarily disable your firewall and antivirus software.
Step 2: Try launching Minecraft and connecting to the server. If it works, add Minecraft (both the launcher and the game executable) as exceptions to your firewall and antivirus.
Step 3: Re-enable your firewall and antivirus.
Method 3: Update Minecraft Launcher and Game Show Steps ↓
Step 1: Ensure your Minecraft launcher is updated to the latest version. Most launchers will automatically check for updates on startup.
Step 2: Make sure you are running the latest version of Minecraft or a version compatible with the server you are trying to join.
Method 4: Restart Your Router and Modem Show Steps ↓
Step 1: Power off your router and modem, and unplug them from the power outlet.
Step 2: Wait for about 30 seconds.
Step 3: Plug the modem back in and wait until it's fully powered on.
Step 4: Plug the router back in and wait until it's fully powered on.
Step 5: Try launching Minecraft and connecting to the server again. This will reset your IP.
Method 5: Disable VPN (if applicable) Show Steps ↓
Step 1: Disconnect from your VPN service.
Step 2: Launch Minecraft and try connecting to the server. If the connection is successful, the VPN may be the cause of the problem.
Step 3: If you need to use a VPN, try connecting to a different VPN server or using a different VPN provider.
Method 6: Reinstall Minecraft Show Steps ↓
Step 1: Uninstall Minecraft completely from your computer.
Step 2: Go to the official Minecraft website and download the latest version of the launcher.
Step 3: Install the launcher and then download and install Minecraft through the launcher.