Has anyone ever seen this error? Trying to set up a VPN. I have tried a bunch of guides but they all lead to this same error.
(https://preview.redd.it/q15rpvd2zxe91.png?width=1300&format=png&auto=webp&s=431ce5baaf117b2ede26b9511c68995bc0f58d06)
HSTS is a common issue if misconfigured.... but what server are you trying to reach? If it's not the OPNsense GUI then the issue is not with OPNsense (and the VPN seems to work fine).
Cheers,
Franco