@rJames23 try and downgrade to 2.1.4, there were some issues with 2.2.0 and it was withdrawn https://community.tp-link.com/en/business/forum/topic/615998

@dekra cipher AES-256-GCM is not supported by tp-link, ref. this tread. https://community.tp-link.com/en/business/forum/topic/616602?replyId=1231612 actually tp-link only supports old OpenVPN version...

@Clive_A Same problem, try to connect to a Unifi UXG-Pro. Have tried with openvpn client on ER605v2, ER707-M2 and ER8411 with no sucsess. If I try OpenVPN Client on UXG-Pro to TP-Link SSL-VPN or...

@Clive_A in fact, it looks like the problem has fixed itself. am now on windows contoller 5.12.6 same firmware on ER707

@Libik yes, they look cool then, it's about the same price as the ER707 so they're not expensive either, you get to test both and compare with the ER707 ;.) then you have to update the thread here...

@EngAdel Do you use VPN on the router? SSL, OpenVPN or IPsec VPN?