Flex-VPN Journal

VPN without unnecessary complexity

Setup, protocol and troubleshooting guides for phones and computers. Every article is written for a concrete task.

All guides

Ten focused guides, updated on 13 August 2026.

Guide

A clear guide to VPN tunnels, servers, IP addresses, encrypted traffic and the practical limits of a VPN connection.

Guide

Choose a paid VPN by testing protocols, speed, supported devices, pricing transparency, apps and customer support.

Guide

Install a VPN on Windows, import a connection key, verify the tunnel and fix common DNS or network adapter issues.

Guide

Set up a VPN on Android, import a key, approve the system prompt, manage battery restrictions and verify both Wi-Fi and mobile data.

Guide

Install a VPN on iPhone, approve the iOS profile, verify the public IP and troubleshoot reconnection after switching networks.

Guide

Get a VPN key, choose the right client, import the profile, verify the public IP and replace devices without exposing credentials.

Guide

Fix a VPN that connects without internet, rejects a key, runs slowly or disconnects after a network change.

Guide

Learn how a VPN key relates to a subscription and device, why it must stay private and how to replace a profile safely.

Guide

Compare AmneziaWG and VLESS + Reality by setup, performance, compatibility and behavior across different networks.

Guide

Understand split tunneling, direct and VPN routes, app or domain rules, performance benefits and the checks needed after configuration.