Disabling a proxy server can vary depending on your operating system and the specific browser or network settings you are using. Here are some general steps to disable a proxy server:

**Windows:**

1. **Turn off proxy in Windows Settings:**

- Go to "Settings" > "Network & Internet" > "Proxy."

- Toggle off the switch under "Use a proxy server."

2. **Disable proxy in Internet Options:**

- Open the Control Panel and go to "Internet Options."

- Under the "Connections" tab, click on "LAN settings."

- Uncheck the box next to "Use a proxy server for your LAN" and click "OK."

**Mac:**

1. **Disable proxy in System Preferences:**

- Go to "System Preferences" > "Network."

- Select your active network connection (Wi-Fi or Ethernet) and click on "Advanced."

- Go to the "Proxies" tab and uncheck any proxy protocols that are enabled.

**Chrome:**

1. **Turn off proxy settings in Chrome:**

- Open Chrome and go to the menu (three dots) > "Settings."

- Scroll down and click on "Advanced" to expand the settings.

- Under the "System" section, click on "Open your computer's proxy settings."

- In the new window, ensure the "Automatically detect settings" option is enabled and other proxy options are disabled.

**Firefox:**

1. **Disable proxy in Firefox settings:**

- Open Firefox and go to the menu (three horizontal lines) > "Options."

- Scroll down to the "Network Settings" section.

- Select "No proxy" or choose "Use system proxy settings" to adhere to your system settings.

After following these steps, make sure to restart your browser or network connection to apply the changes. If you are still experiencing issues with the proxy server, double-check your settings and consult the relevant documentation for your specific setup.