Error 789 RRAS L2TP/IPsec VPN server problem RRS feed

  • Question

  • Hi,

    I am trying to build a basic L2TP VPN server in GCP cloud, first using WIn 2016 and then 2012R2 but same error in the end:

    I have followed same trusted steps that always worked for me with on-prem environment but wont work this time.

    I have done following troubleshoot but no Sol so far:

    - Pre-shared is correct at both client machine and server, same key is working fine on existing VPN server.

    - Restarted  IKE and AuthIPsec Keying Moudules and IPSec Policy Agent Services  - but no change

    - made sure UDP port 500 and 4500 are open

    - found nothing significant in Even viewers

    I have also tried opening all inbound/outbound ports in GCP firewall and disable win firewall profiles and than I get error: 809

    please suggest.

    • Edited by Beadmin Sunday, December 9, 2018 8:53 AM
    Saturday, December 8, 2018 5:20 PM


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    • Marked as answer by Beadmin Monday, February 18, 2019 4:03 PM
    Monday, December 24, 2018 9:16 AM

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