To effectively manage your internet connection and security, understanding how to check proxy and firewall settings on various devices is essential. Here’s a guide tailored to different platforms.

On Chrome

Checking Proxy Settings:

1. Access Settings: Launch Chrome, click on the three dots in the upper-right corner, and choose ‘Settings’.

2. Navigate to Advanced Settings: Scroll to the bottom, click on ‘Advanced’, and under the ‘System’ section, select ‘Open your computer’s proxy settings.’

3. Review Your Settings:

   • Windows: This action opens the Internet Properties window. Under the ‘Connections’ tab, click ‘LAN settings’ to see and adjust proxy configurations.

   • macOS: The Network settings open in System Preferences. Choose your active network, click ‘Advanced’, and check the ‘Proxies’ tab.

Checking Firewall Settings:

• Windows: Go to Control Panel > System and Security > Windows Defender Firewall to verify if the firewall is active and inspect permitted applications.

• macOS: Access System Preferences > Security & Privacy > Firewall to view the status and settings.

On Windows

Checking Proxy Settings:

1. Open Settings: Navigate to the ‘Settings’ menu.

2. Access Proxy Settings: Go to Network & Internet > Proxy.

3. Review Configuration:

   • If ‘Automatically detect settings’ is on, your device uses the default network proxy.

   • If ‘Use a proxy server’ is enabled, check the ‘Address’ and ‘Port’ fields for proxy server information.

Checking Firewall Settings:

1. Open Control Panel: Navigate to System and Security > Windows Defender Firewall.

2. Firewall Status: Verify if the firewall is active.

3. Manage Applications: Click ‘Allow an app through Firewall’ to view or modify blocked/allowed programs.

4. Advanced Configuration: Use ‘Advanced Settings’ to create or alter inbound/outbound rules.

On macOS

Checking Proxy Settings:

1. Open System Preferences: Select ‘Network’.

2. Choose Network and Configure: Select your active connection, click ‘Advanced’, and navigate to the ‘Proxies’ tab.

3. Review Protocols: Check which proxy protocols (e.g., HTTP, HTTPS, SOCKS) are enabled and their settings.

Checking Firewall Settings:

1. Access Security: Go to System Preferences > Security & Privacy.

2. View Firewall: Check the status under the ‘Firewall’ tab.

3. Manage Permissions: Click ‘Firewall Options’ to adjust app permissions and configure connections.

On iPhone/iPad

Checking Proxy Settings:

1. Open Settings App: Select ‘Wi-Fi’ and tap on the connected network.

2. Review Proxy Configuration: Scroll to ‘HTTP Proxy’:

   • ‘Off’ means no proxy is used.

   • ‘Manual’ or ‘Auto’ allows review of proxy server details.

Firewall Note:

iOS devices rely on network-based firewalls, such as those in routers or corporate networks.

On Android

Checking Proxy Settings:

1. Open Settings App: Navigate to Network & Internet > Wi-Fi.

2. Configure Proxy: Tap your connected network, select ‘Advanced’, and check ‘Proxy settings’:

   • ‘None’ indicates no proxy usage.

   • ‘Manual’ allows edits to proxy server info.

Firewall Note:

Android lacks a built-in firewall. Consider using third-party apps like NetGuard or checking the router’s settings.

On Routers

Checking Firewall Settings:

1. Access Router: Open a browser, enter the router’s admin URL (e.g., 192.168.1.1), and log in with your credentials.

2. Firewall Settings: Go to the ‘Firewall’ or ‘Security’ section to review and ensure firewall rules are active. Check for blocked IPs or open ports as necessary.

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