- 
Any of these Windows L2TP/IPsec or IKEv2 errors can occur if a response wasn't received from the VPN server. This is often caused by router interference. Solution: - If using the VyprVPN Desktop App, ensure the app was installed using the computer administrator profile.
- 
If using a manual configuration, ensure that you have added the necessary registry setting outlined in the setup instructions: 
- Temporarily disable your firewall and/or other security software.
 
If you need any further assistance, please contact our 24/7 Customer Success Team, who would be glad to assist.
