Configure Proxy Using IP Address on Windows

This guide explains how to replace a proxy DNS hostname (e.g., proxy.company.com) with its IP address on Windows, using either the GUI or PowerShell.

This approach is useful in scenarios where:

• DNS resolution is blocked or unreliable
• Network latency or certificate trust issues affect performance
• Access must be restricted to specific IP addresses (egress control)

Manual Method (Internet Options)

1. Open Control Panel → Internet Options
2. Go to the Connections tab
3. Click LAN Settings
4. Under Proxy Server, enable the checkbox:
   • Replace proxy.company.com with your proxy IP (e.g., 192.168.1.10)
   • Set the port (commonly 8080)
5. Click OK, then Apply

This will apply to most applications that use the WinINET proxy stack (e.g., Internet Explorer, Microsoft Edge Legacy, Office apps).

Scripted Method (PowerShell)

Use this PowerShell script to configure both WinHTTP and WinINET proxy settings using an IP address:

# Define proxy IP and port
$proxyIP = "http://192.168.1.10:8080"


# Configure proxy for WinHTTP (used by system services like Intune, Windows Update)
netsh winhttp set proxy $proxyIP ";$bypassList"

# Configure proxy for WinINET (used by most user apps and browsers)
$regPath = "HKCU:\Software\Microsoft\Windows\CurrentVersion\Internet Settings"
Set-ItemProperty -Path $regPath -Name ProxyEnable -Value 1
Set-ItemProperty -Path $regPath -Name ProxyServer -Value $proxyIP
Set-ItemProperty -Path $regPath -Name ProxyOverride -Value $bypassList