Not able to send packet to peer after PC is restored from sleep status.

[xygwfxu]

I move between office & home while I am on window laptop and it works for vpn connection.

I found an issue which make me feel I could submit issue for you.

The reproduce steps are:
First I put PC into sleep status, then go to another place, then awake PC. Then try to ping peer, it never gets re-works.

A few logs below:

Error while reading from Windows tap device {C21059CB-C23C-4135-121}: (995) 由于线程退出或应用程序请求，已中止 I/O 操作。
Awaking from dead after 5323 seconds of sleep
Forcing connection close after sleep time master (47.100.111.222 port 5555)

I have to restart tincd to make that work again. But if peer is getting same problem then it gets lost.

Some other ways to produce same but I am not sure whether it's same one like:
while tincd is running I disable tinc tap connection then eanble it again -- no more ping to work as well.

Thank you great works!!