There are countless potential issues that can incite a customer to call and say, "We can't connect to the VPN!" So where do you begin? This Learning Guide is designed to provide value-added resellers (VARs) and networking consultants with strategies for Windows virtual private network troubleshooting. If you can't find the answer to your customer's specific problem here, submit your question to our VPN expert, Jon Snyder, author of VPNs Illustrated: Tunnels, VPNs and IPsec.
- Tip: Windows VPN client side connection troubleshooting
VARs will be asked to troubleshoot their customers' Windows VPNs. This tip discusses several techniques for troubleshooting a Windows 2000 VPN connection on the client side.
- Tip: Windows VPN server side connectivity troubleshooting
If your customer's Windows VPN connectivity problem isn't originating on the client side, then it's time to troubleshoot the server side. This tip focuses on some common areas you should address on the server side when troubleshooting your customer's VPN connection problems.
- Tip: Windows VPN user account troubleshooting
You may be tempted to analyze VPN configurations as the first step in troubleshooting a customer's VPN connectivity, but user-account related issues are also common perpetrators of connectivity problems. This tip suggests several user-account related issues you should look at first.
- Q&A: Build a bigger, faster, stronger Windows VPN
These insights from networking expert Joel Snyder, senior partner of consulting firm Opus One, on building a better Windows VPN also shed light on VPN troubleshooting.
- Book chapter: Remote access Q&A: Security problems with Windows 2000 VPN
Here's advice from Windows guru Roberta Bragg on troubleshooting VPN security settings that work in a test lab but not in a production environment.
- Q&A: VPN connection issues post Windows XP SP2 upgrade
Networking security expert Wes Noonan explains how to correct VPN connection issues after upgrading to Windows XP service pack 2.