Can't connect to an external vpn inside network



  • I'm trying to connect to an external VPN (L2TP "Unifi Remove User VPN") on my iPhone connected to wifi on my internal network behind pfsense. The phone fails to connect saying "The L2TP-VPN server did not respond", but, if i use cellular instead, it works fine.

    I'm using automatic NAT outbound rule generation. Also tried manual and hybrid to no avail.

    I feel like i've missed some small setting somewhere to allow this vpn traffic to passthrough.

    Any pointers?



  • @petesmc I'm having what seems like the same issue. We can not connect to a client's Meraki L2TP/IPSec VPN, when on our LAN/Wi-Fi which is behind a pfSense router. Works fine if I connect at home or use mobile hot spot.



  • I had to:

    1. Delete site to site vpn configuration on both pfSense AND the remote device. Even though both were disabled.
    2. Delete all Nat rules and set it back to auto on pfSense.
    3. Reboot.

    For Windows there is a registry update you may need to do but I can’t remember what it was, sorry.


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