Some Windows 7 editions omit the Telnet client. Enable it under “Turn Windows features on or off”, or use alternative tests shown in the Chinese guide (e.g. PowerShell or third-party tools).
This article describes the legacy 5UF browser-related offering. For current products please use the main site or the 5UF VPN app. Full details remain on the Chinese page.
Sign in on our website, download the mobile profile, open it on your iOS device, and install the VPN payload when prompted. The Chinese article includes step-by-step illustrations in Safari and Settings.
This guide walks through manual L2TP configuration on Apple mobile devices. L2TP is a legacy option—when possible we recommend the official 5UF app. See the Chinese article for exact field values and screenshots.
Many sites offer free proxies or “free VPN” tools. Paid services like 5UF fund real servers, support, security updates, and long-term reliability. This article explains our value in more detail—please refer to the Chinese page for the full text.
