If Windows 721 error occurs on your computer, this guide should help you.
VPN error 721 is a Microsoft error that occurs after an unsuccessful attempt to establish a virtual private network (VPN) connection to the corporate network using Point-to-Point Tunneling (PPTP) client protocol.
This article provides a solution to error 721 that occurs when you try to establish a VPN connection through a Windows Server Remote Access Server.
Initial Product Version: Windows 10 – All Editions
Original Knowledge Base Number: 888201
Cause Of Error 721
Point-to-Point Tunneling Protocol uses General Routing Encapsulation (GRE) for the tunneled data. The error can occur if the network firewall does not allow GRE traffic. Generic Routing Encapsulation Protocol is used in conjunction with Point-to-Point Tunneling Protocol to create VPNs between a server and a client, or between clients. This error can occur even if the modem driver is not compatible with Windows XP.
Method 1. Investigate The Common Problem
Before diving into other possible repair strategies, it’s important to make sure you don’t have common problems. As mentioned above, error code 721 for Battlefront 2 playersBecame infamous after a widespread DDoS attack on EA’s servers that seriously impacted online functionality for several weeks.
No such messages have been received in recent months. However, to verify that the problem is localized, follow the links below:
- Descent detector
- Service failed?
- Crash Report
- EA Star Wards Twitter account.