VPN not working on Windows 10 1903

Hey Everyone,

    I have been following this thread like everyone else who had their VPN solution broken with the 1903 update.  We have applied the KB4522355 and still no luck with our Direct Access implementation.  Any word on this?

Hello everyone, recently I updated Windows 10 Pro from version 1809 to 1903and it broke my VPN PPTP and L2TP Windows Built-In.  You need to have a right OS Build to make PPTP and L2TP VPN work again.  I had Windows 10 version 1903 OS Build 18362.418 but you need to get OS Build 18362.449 that's when Windows Built-In PTTP and L2TP VPN will start working.   Get this update 2019-10 Cumulative Update for Windows 10 Version 1903 for x64-based Systems (KB4522355)

Let me know if this helps. 

KB4522355 fix it for me in one of my W10 1903 machines that had issues.   I also found it was fixed in insider build (don't recall the build number), but then a new insider build was released and the issue is even worse.  VPN doesn't work at all, even from the settings charm :P.  But again this is insider builds.

The new KB did not resolve the problem for us either.  Although our issue may be different.  Here's how we set it up and what happens.

We create the VPN a little differently so that people can sign in to the VPN BEFORE signing in to the computer.  The option will show as a new icon on the bottom left of the login screen AFTER pressing Ctl-Alt-Del.  Click it and you will see a new sign on box for your VPN credentials.  Benefit of this is GPs all execute just like normal along with login scripts.

1:  Go to Network & Internet

2:  Click on Dial-Up

3:  Setup a New Connection

4:  Connect to a Workplace

5:  Create a New Connection

6:  Use my Internet Connection (VPN)

7:  Enter the address for your VPN

8:  Give it a name

9:  Check the box for Allow other people to use this connection.  (This is what makes it work prior to logging on to the machine itself)

10:  Click Create

11:  Click Change Adapter Options (top right of window, stretch it out if you have to)

12:  Right click on the adapter for your new Connection.  Select Properties

13:  Verify VPN address on the General tab

14:  Select Security tab

15:  Set proper type of VPN, for us this is Layer 2 Tunneling Protocol with IPsec (L2TP/IPsec)  (We use the Meraki VPN)

16:  Set the proper encryption, for us this is "Require encryption (disconnect if server declines)

17:  Set the Radio button for "Allow These Protocols", then set Unencrypted password (PAP)  NOTE: This IS encrypted.  Very misleading.

18:  Click on Advanced Settings

19:  Set Radio button for  "Use preshared key for authentication" and then enter your preshared key stored in your VPN server/router

20:  Ok, close it all up.

For us this works one time.  After the first use, if you use an IP for the VPN address it will be corrupted.  Additionally, the Pre-Shared key will be gone and "Use certificate for authentication" will be selected.   This nonsense has gone on now since 1809.  It's a CLUSTER!   Fix it Microsoft!!

Does NOT fix it for me.