10 things you should know about troubleshooting VPN connections

When you run into VPN problems, it helps to have a list of solutions to fall back on. Here are some of the most common issues encountered with VPN connections and advice on what to do about them.

Virtual private networking provides a secure and convenient way for users to connect remotely to their corporate networks, but plenty of things can go wrong. Common problems include:

• Users unable to access file servers
• Users able to connect via PPTP but not L2TP/IPSec
• Users unable to establish IPSec tunnel mode connections from behind some firewalls
• Users unable to reach some network IDs on the corporate network

IT veterans Deb Shinder and Dr. Thomas Shinder have put together this concise guide that outlines typical problems, causes, and solutions.

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