@WrothamCC Your question jogged my memory from earlier. I once asked the same question and received the following answer： As for OpenVPN: ER605 has 4 WAN ports, each port work as a VPN Server can...

@Aviator14 How exactly is this VLAN in question set up? If a new VLAN works fine, it is likely that there is a problem with the previous VLAN settings, so recommend double-checking. Are ACL-related...

@ThorstenStr This router's WAN IP should not trigger the mechanism to report to this DDNS server if it remains unchanged. Have you set the interval and what is the exact setting of the NO-IP on the...

@RickJamesBish Yes, you can do that, check this, only enable 6G.

@Playstheblues Check this: https://community.tp-link.com/en/business/forum/topic/584498

@ThorstenStr It is recommended that you first confirm whether the DDNS has not been updated or the WAN IP of the router has not been updated？