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I have set up a new VPN following the guide here. However when I try to connect to the VPN with the client i get an error "Connection failed. Try again." This happens every time. I opened the log file from my AppData\Roaming\AWSVPNClient\logs folder and I spotted an error in the log. I have pasted the log below:

2020-04-23 15:32:52.088 +01:00 [INF] Starting OpenVpn process
2020-04-23 15:32:52.284 +01:00 [DBG] DeDupeProcessDiedSignals: Unexpected errors caused OpenVPN to exit prematurely
2020-04-23 15:32:52.284 +01:00 [ERR] Process died signal sent
ACVC.Core.OpenVpn.OvpnProcessFailedToStartException: Unexpected errors caused OpenVPN to exit prematurely
   at ACVC.Core.OpenVpn.OvpnWpfProcessManager.<Start>d__19.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()
   at ACVC.Core.OpenVpn.OvpnConnectionManager.<Connect>d__58.MoveNext()
2020-04-23 15:32:52.284 +01:00 [DBG] Received exception for connection state Disconnected. Show error message to user
2020-04-23 15:32:52.284 +01:00 [ERR] Exception recieved by connect window view model
ACVC.Core.OpenVpn.OvpnProcessDiedException: The VPN process has stopped unexpectedly.
2020-04-23 15:39:07.769 +01:00 [DBG] Clean up connections. Connection state: Connecting
2020-04-23 15:39:07.769 +01:00 [INF] Terminating connection
2020-04-23 15:39:07.769 +01:00 [DBG]  Ending connection details reporting.
2020-04-23 15:39:07.769 +01:00 [DBG] GracefulKill
2020-04-23 15:39:07.769 +01:00 [DBG] Stopping openvpn process
2020-04-23 15:39:07.769 +01:00 [DBG] Cancelling socket listen token
2020-04-23 15:39:07.769 +01:00 [DBG] Dispose socket
2020-04-23 15:39:07.875 +01:00 [DBG] Release process manager lock
2020-04-23 15:39:07.875 +01:00 [DBG] Disconnected

I have Googled the exception but not found anything of use. I wonder if it could be that I set up the CIDR ranges incorrectly? That was the only part of the guide that confused me.

Any help is massively appreciated.

sysadmin1138
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Salbrox
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4 Answers4

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I had the same problem, which I solved by reinstalling the AWS Client VPN software. I checked the device driver and there was no TAP-Windows.

https://docs.aws.amazon.com/vpn/latest/clientvpn-user/windows-troubleshooting.html#windows-troubleshooting-client-vpn-quits

VPN connection process quits unexpectedly

Problem

While connecting to a Client VPN endpoint, the client quits unexpectedly.

Cause

TAP-Windows is not installed on your computer. This software is required to run the client.

Solution

Rerun the AWS-provided client installer to install all the required dependencies.

Masaru Ogura
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For me worked install a different version to the newest:

https://docs.aws.amazon.com/vpn/latest/clientvpn-user/release-notes.html

I installed 1.2.1 on a windows 10 machine

hestellezg
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I received the same error and the reason was that the .ovpn, .crt and .key files were moved. To fix this, you have to replace the missing files. For me, this was a simple moving the files back.

If this does not help you, then probably creating a new .ovpn file, fixing the paths to the .crt and .key files and creating a new profile in the application works.

Apparently, "File not found" is so '90s for AWS :-).

TFuto
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I had the same problem. Im not sure for the answer but It connected! In my case, I located configuration file at C:\User\username\configuration file so, I relocated configuration file at C:\configuration file try it!

user574369
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