v2rayN adds a plain proxy from its Settings menu. Choose Add [HTTP] or Add [SOCKS], type the gateway host in address, the port in port and the login in the optional username and password fields, leave the transport settings alone, then set the server as active and test its delay. The system proxy or Tun mode routes Windows through it.
Settings (配置项) → Add [HTTP] or Add [SOCKS]
Open v2rayN and click Settings (配置项) in the top menu. Choose Add [HTTP] for the HTTP port or Add [SOCKS] for the SOCKS5 port; the dialog is the same, only the protocol differs.

Type a remark, the gateway host in address and the port in port, then the username and password in the optional fields. Leave transport, network, type, host, path and TLS at their defaults and click OK.

Right-click the new row and choose Set as Active Server, then Test Delay. A latency in milliseconds means the gateway answered with your login.

In the bottom bar set the system proxy to Set system proxy, or enable Tun mode for apps that ignore the system proxy. The live traffic log shows connections through the node.

Open the QuantumProxies IP checker in a browser. It should show the proxy's IP and the country from the username.

Test Delay on the server row; then the IP checker in a browser once the system proxy is set.
v2rayN 7.x is shown; 6.x has the same entries under a slightly different menu.
Copy the line from the dashboard (Proxies, your plan, the proxy generator) rather than typing it: it already carries the country, the session id and the session length in the username. The table shows what each field holds.
| Plan | Host | HTTP port | SOCKS5 port | Username shape |
|---|---|---|---|---|
| Residential Premium | residentialpremium.quantumproxies.io | 8080 | 1080 | USER-country-us-sid-k3f9a1b2-ttl-60m |
| Residential Basic | residentialboson.quantumproxies.io | 9000 | from the generator | USER-country-us |
| Mobile | mobile-us.quantumproxies.io (also -eu, -as, ww) | 8080 | 1080 | USER-country-us-type-mobile |
| Datacenter (per GB) | datacenterboson.quantumproxies.io | 9999 | 10000 | USER-type-datacenter-country-de |
| IPv6 | ipv6.quantumproxies.io | 1001 | from the generator | USER-country-us-package-ipv6 |
| ISP (dedicated IP) | the IP of your line | 8000 | on the plan page | the line's own login |
The password is the one the generator prints next to the username. Pick HTTP or SOCKS5 in the tool and use the port of that column; a port from the other column is the most common reason a check fails. USER and the session id are placeholders for your own values.
Add [HTTP] with the HTTP port of your plan, Add [SOCKS] with the SOCKS5 port. The address, username and password are the same in both dialogs.
The protocol does not match the port, or the username and password were left empty: our gateways require them even though v2rayN marks the fields optional.
Set system proxy covers browsers and most apps. Tun mode captures everything, including apps that ignore proxy settings, and needs the Tun core v2rayN offers to install.
Skip the marketing. QuantumProxies.io publishes a machine-readable site map, Markdown for every page, a free MCP server, and APIs billed from the same balance as your proxies.
Connect in one command: npx -y quantumproxies-mcp