OpenVPN Support Forum

client version: OpenVPN 2.2.0

client os: Windows XP SP2 client

server version: OpenVPN 2.1_rc9 i486-pc-linux-gnu [SSL] [LZO2] [EPOLL] [PKCS11] built on Oct 14 2008

server os: ubuntu 8.04

Server starts.

Client ends with following log output on command line:
Wed Jul 06 22:24:27 2011 us=221000 TAP-Win32 Driver Version 9.4
Wed Jul 06 22:24:27 2011 us=221000 ERROR: This version of OpenVPN requires a TAP-Win32 driver that is at least version 9.8 -- If you recently upgraded your OpenVPN distribution, a reboot is probably required at this point to get Windows to see the new driver.
Wed Jul 06 22:24:27 2011 us=221000 Exiting

Same error if server+client are tcp or udp.

Looks to me like openvpn 2.2.0 is not correctly identifying the TAP driver version, which it installed itself.
Either that or somehow I stuffed up - any advice on how to test further appreciated.

Thanks in advance
Zenaan

BUMP..

Having the same issue... Im running the client on win 7 home... 64x...

What I ended up doing was uninstalling openvpn, and re-installing - although, I installed the latest version, since version 2.2.1 came out the day before I had another go at fixing it.

So I can't say whether it was simply uninstall and then reinstall, or if it was uninstalling and installing new version 2.2.1.

I had coLinux (andLinux) installed, and I disabled and removed the TAP (v8) virtual eth device for that.

I also had SecurePoint VPN installed and that had its own TAP driver installed - I uninstalled securepoint vpn as well.

So, some combination of the above is what did it.

The TAP driver has version 9.0.0.x, where x is 4 or 8 etc, and yet the error message talks about 9.4 or 9.8. So there's a bit of a grem in the system there somewhere.

Good luck