Hi Julien,Is this on a Multi-WAN?From the EOL announcement:The Disable Negate rule on policy routing rules option is no longer available as automatic VPN skip rules for policy-based routing have been removed. If you want to skip your VPN, please add an explicit rule.Cheers,Franco
No, nothing with VPN config. The VPN traffic will now be policy-routed through firewall rules and this could interfere with your connectivity (packets come in ok, but get rerouted to the wrong interface).
Easy things to check are that the OpenVPN is configured to listen on the proper interface, which since you had a multi-WAN before might not have defaulted to a sane value after removing the previous multi-WAN setup.Or you might try destroying the current OpenVPN server and re-creating with a new one that never had the multi-WAN at all.If you have a TAP set up, make sure your Bridge interface is still set up properly.You can also try (though I assume you have already done so) making sure the clients are up to date. Essentially, if the firewall rules are correct, which you say they are, then the next-most-likely source of error is the config of the server itself.
What settings have you configured have for the VPN connection?