The app implements PPP over HTTPS (SSL). SSTP Max lets you configure or spoil TLS parameters for FBT/UBT. Currently Supported Server Providers: 1. Mikrotik 2. Hideme 3. VPN Gate 4. Azure 5. SoftEther also works with Keenetic The speed and performance may depend on the server provider. If you don't know where to get those servers, please don't install this app or rate inappropriately. For bugs, queries and suggestions, do send me an email or do report in the Telegram Channel listed below. email: [email protected] telegram: https://t.me/sstpchannel Troubleshooting Tip: Some server provider doesn't provide support for PAP authentication so we need to disable it, go to Setting > Misc > Authentication Method, then uncheck PAP, and Save.