AWS VPN Client can not be connected.

Question

AWS VPN Client can not be connected with below logs.
```
2022-08-10 13:21:44.518 +09:00 [DBG] CM processsing: >LOG:1660105304,I,open_tun
2022-08-10 13:21:44.518 +09:00 [DBG] CM processsing: 
2022-08-10 13:21:44.518 +09:00 [DBG] 🥶 APPEND line
2022-08-10 13:21:44.518 +09:00 [INF] Begin receive init again
2022-08-10 13:21:44.521 +09:00 [INF] Received bytes: 105
2022-08-10 13:21:44.521 +09:00 [DBG] Message marshalling complete
2022-08-10 13:21:44.521 +09:00 [DBG] CM received: >LOG:1660105304,,CreateFile failed on TAP device: \.\Global\{5B0DB356-AB62-485C-A071-3537D307D3BB}.tap

2022-08-10 13:21:44.521 +09:00 [DBG] CM processsing: >LOG:1660105304,,CreateFile failed on TAP device: \.\Global\{5B0DB356-AB62-485C-A071-3537D307D3BB}.tap
2022-08-10 13:21:44.521 +09:00 [DBG] CM processsing: 
2022-08-10 13:21:44.521 +09:00 [DBG] 🥶 APPEND line
2022-08-10 13:21:44.521 +09:00 [INF] Begin receive init again
2022-08-10 13:21:44.521 +09:00 [INF] Received bytes: 151
2022-08-10 13:21:44.521 +09:00 [DBG] Message marshalling complete
2022-08-10 13:21:44.521 +09:00 [DBG] CM received: >LOG:1660105304,F,All TAP-Windows adapters on this system are currently in use.
>FATAL:All TAP-Windows adapters on this system are currently in use.

2022-08-10 13:21:44.521 +09:00 [DBG] CM processsing: >LOG:1660105304,F,All TAP-Windows adapters on this system are currently in use.
2022-08-10 13:21:44.521 +09:00 [DBG] CM processsing: >FATAL:All TAP-Windows adapters on this system are currently in use.
```
I reinstalled the VPN Client but the error occurs continuously.

Raptop brand is Lenovo and OS is Windows.

How should I correct this error?

Accepted Answer

The below error indicates issues with the Windows TAP adapter, Have you tried re-installing the TAP driver?

> 2022-08-10 13:21:44.521 +09:00 [DBG] CM processsing: >FATAL:All TAP-Windows adapters on this system are currently in use.

See below reference, please note this is external link so can not vouch for the solution but you can give it a try. As such, this is not AWS ClientVPN issue but rather Windows TAP issue so this would be out of scope for even support to troubleshoot.

https://vpn.ac/knowledgebase/64/OpenVPN-Error-All-TAP-Windows-adapters-on-this-system-are-currently-in-use.html

AWS VPN Client can not be connected.

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