On 1/12/2015 10:29 AM, Tanel Liiv wrote:
Etienne Dechamps <etienne@...> writes:
You should mention your tinc version and the version of the
"TAP-Windows Adapter V9" driver for the virtual network device you're
using (i.e. the contents of "Driver version" as seen in the Device
Manager).

On Mon, Dec 15, 2014 at 10:04 PM, Adam Del Vecchio <adam@...> wrote:
Hello tincers,

I was recently trying to add a new Windows client to my tinc network and ran
into an interesting error; upon starting tinc I am met with the usual
successful startup (debug level 0; detects TAP device; Ready), however it
appears that any writes/reads from the TAP device fail with:

"Error while writing to Windows tap device <device ID truncated>: (997)
Overlapped I/O operation is in progress"
[...]
Hello, I am experiencing the exact same problem.
On Windows 8.1.
Tap version: 9.0.0.21
Tinc: 1.0.25

It seems tinc is working (I can ping 3 other hosts on the network). But it
seems it makes tinc a bit unstable, because the first few times it failed
to run correctly(cmd hung after a huge load of those I/O errors).

Regards,
Tanel Liiv
I was having a similar issue on one coputer. The log was filled with I/O errors. I had installed the TAP driver from OpenVPN, but removed it and installed the one packaged with tinc. I do have another computer that is using the OpenVPN supplied one and seems to work fine. I know there are like two versions of TAP that you can get with OpenVPN, but am unsure which had the issue. I almost wonder if simply removing the TAP interface and re-installing it would fix it. I would try a re-install first using the current driver, and then try an OpenVPN variant if that doesn't work.

Lance
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