EasyConnect VPN Proxy Troubleshooting

EasyConnect VPN Proxy Troubleshooting | Generated by AI

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Question: How to use Sangfor EasyConnect 20.80MB Windows client? It shows proxy settings / browser proxy / username and VPN connection failed.

Answer:

EasyConnect is not a normal HTTP proxy client. It is a VPN SSL client from Sangfor Technologies. The flow is usually:

Windows PC
   |
   | HTTPS (443)
   |
Sangfor SSL VPN Gateway
   |
Enterprise network resources

The browser proxy setting is usually not required. Windows proxy and EasyConnect VPN are separate things. Microsoft also notes that VPN connections and proxy settings are configured separately. (Microsoft Support)

1. Install EasyConnect

Run:

EasyConnect_x64_7_6_7_3.exe

Requirements from your text:

Windows x86/x64 supported
ARM Windows 8/10 supported
ARM Windows 11 not supported
Windows Server not supported

Your Lenovo Xiaoxin / normal Intel laptop:

CPU: x86_64
Windows 11

should use:

x64 version

2. Normal connection steps

Open EasyConnect:

Server Address:
https://vpn.example.com

Example:

https://vpn.company.com

Then:

Connect
    |
    v
Username
Password
OTP (if required)
    |
    v
VPN connected

You need the VPN gateway address, not proxy address.

3. Do NOT set Mihomo/Clash proxy here

You previously have:

port: 7890
socks-port: 7891
mixed-port: 7892

Do not put:

127.0.0.1:7890

into EasyConnect unless your company specifically requires outbound proxy.

Wrong:

EasyConnect
Proxy:
127.0.0.1
7890
username
password

This often causes:

Connection failed
Proxy authentication failed

because EasyConnect is trying to reach VPN through Clash proxy.

4. If company requires proxy

Some enterprise networks require:

Internet
   |
HTTP Proxy
   |
EasyConnect
   |
VPN Gateway

Then configure inside EasyConnect:

Usually:

Settings
  |
  Advanced
  |
  Proxy

Fill:

Proxy type:
HTTP

Server:
proxy.company.com

Port:
8080

Username:
<company proxy username>

Password:
<company proxy password>

The username/password here are proxy credentials, not VPN credentials. Proxy authentication failures happen when these credentials do not match the proxy server. (Magic Connect)

5. Debug connection failure

Open Windows CMD:

Check DNS

nslookup vpn.company.com

Should return IP.

Check HTTPS port

Test-NetConnection vpn.company.com -Port 443

Expected:

TcpTestSucceeded : True

If false:

firewall blocking
wrong VPN address
network cannot reach gateway

Check Windows proxy

Go:

Settings
 → Network & Internet
 → Proxy

Temporarily disable:

Use a proxy server = Off

Microsoft recommends verifying proxy address/port when applications cannot connect through a proxy. (Microsoft Support)

6. Common Sangfor EasyConnect problems

Error: connection failed immediately

Likely:

wrong VPN URL
wrong port
DNS failure

Likely:

Sangfor driver not installed
Windows 11 compatibility issue
endpoint security blocking

Run:

services.msc

Look for Sangfor services.

Browser works but EasyConnect fails

Normal.

Browser:

HTTP/HTTPS

EasyConnect:

SSL VPN tunnel
virtual adapter
network driver

Different layers.

Recommended first test

Disable Windows proxy:

Settings
→ Network
→ Proxy
→ Off

Disable Clash/Mihomo temporarily.
Open EasyConnect.
Enter only:

VPN server URL
VPN username
VPN password

Connect.

If still failing, send:

EasyConnect error screenshot
VPN server URL format (hide company domain if sensitive)
Windows version
EasyConnect version

and we can debug the exact failure path.

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