@Enerru You can check the LED light on the CPE, if you connect one PC into the LAN0 port whether the light lits up? Try different ethernet cables, different clients to test.

@Tee123 Please check this: The Requirements of Establishing an External Portal Server (above Omada Controller 4.1.5)

@jmbrysk It may be that the OpenVPN version is too low and it will report an error as insecure. You can try to manually change "comp-lzo adaptive" to "compress lzo" in the exported OVPN file. But I...

@Thoemu You can forget the current EAP and re-adopt it.

@naponet You can try it with your firewall and anti-virus software turned off. Once the tunnel is set up successfully, the VPN clients on both ends should be able to communicate. Also note that Ipsec...

@FrancoP Can devices connect to port 4 handle tagged data? If not, it needs to be set to Untagged.