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How to Troubleshoot Proxy and VPN Connection Problems in Windows

Issue Description 

Proxy or VPN connections may fail, block access, or disconnect unexpectedly. 

Common Causes 

  • Incorrect proxy settings 
  • VPN client conflicts 
  • Firewall restrictions 

Step-by-Step Solution 

Step 1: Disable Proxy Temporarily 

  • Open Settings → Network & Internet → Proxy 
  • Turn OFF Use a proxy server 

 

Step 2: Restart VPN Client 

  • Exit VPN software 
  • Restart PC 
  • Reconnect VPN 

 

Step 3: Update VPN Software 

  • Install latest VPN client version 
  • Update network drivers 

 

Step 4: Reset Network 

  • Open Advanced network settings → Network reset 
  • Restart PC 

Explore Further 

  • Try different VPN protocols 
  • Check firewall rules 

Prevention & Best Practices 

Avoid running multiple VPNs simultaneously.