[SOLVED] VPN: Remote server is not responding (sometimes)


Jun 13, 2020
I'm trying to figure out why a VPN connection will work one day, and not the next. With the only thing that happened inbetween was the computer going to sleep and waking up again.

Myself and occasionally 1 coworker have this issue.
3+ coworkers never have an issue connecting to VPN.

Below are a couple of failed connection scenarios I've witnessed, each one being a different day:

#1 fail: Laptop refused to connect, after a successful connection the previous day. Android phone connected fine, on the same home wifi network.
#2 fail: Laptop and Android phone fail to connect, on the same home wifi network.
#3 fail: Laptop refused to connect. Installed optional Windows Updates and this fixed the connection. VPN connection was then successful, until the next day (where it failed again.)

VPN details:
  • VPN provider: Windows (built-in)
  • IPSec identifier: not used
  • L2TP secret: not used
  • Type: L2TP/IPSec PSK
  • w/ Pre Shared Key
I'm stumped. Same network, same device, same VPN connection. Nothing changed in any way, but the connection somehow breaks. What's going on?
Sounds like an issue with the nic/router/ip not being 100% correct when waking up. I would enable wake on lan and see if that helps. Otherwise, get rid of sleep/standby.