Fix for Steam Error Code 503 ‘Service Unavailable’


Faulty Internet connection, issues with the Steam servers, or the with the proxy server could lead to Error Code 503 on Steam.

Fix 1. Make sure Internet is Working Fine:

  • Turn off the router.
  • Turn the router back on again after a few seconds.
  • Also, restart your PC.

You can also check your network connection from a different device to make sure that it is working fine.

Fix 2. Disable Proxy Servers:

If you are using a proxy, you might get this error. Try disabling it to get rid of this error.

  • Press Windows Key + R to open Windows Run. Type ‘inetcpl.cpl‘ and hit Enter.
  • Go to ‘Connections‘ tab, then click on ‘LAN Settings‘.
  • Disable the ‘Use a proxy server for your LAN‘ option.

Fix 3. Check Steam’s Server Status:

If your are still having the error, you should check the status of Steam servers. If the servers are down, you are likely to experience such issues. To check its status:

  • Go to Steam Status and check the status of Steam servers.
  • This site will show the status of Steam Store, Community and its Web API.

Fix 4. Reinstall Steam:

If none of the fixes have worked for you, reinstalling Steam could get this issue fixed.

Before proceeding with the reinstallation of Steam, make sure to create a backup of the Steamapps folder. It is located here:
C:\Program Files (x86)\Steam\steamapps

  • Press Windows Key + R to open Windows Run. Type ‘appwiz.cpl‘ and hit Enter.
  • Right-click Steam and select ‘Uninstall‘.
  • Head to Steam’s official site, download and install it again.
  • After the installation, place the steamapps folder back in its location (C:\Program Files (x86)\Steam).