@mAYH3M LACP is used to combine multiple physical links dynamically as a logical link, which is defined in IEEE802.3ad.TL-ER7206 cannot support this feature.

@BarryK Hi there has a FAQ on how to set up Facebook portal on Controller https://www.tp-link.com/us/support/faq/896/ Also you can see there has the configuration guide in this link.

@litadmin Pharos management tool is to control the CPE series. Omada Controller is used to managing the related router/swicth/access point. No issue if you use both management tool at the same time.

@DougLife How about Clone the MAC address for ER7206 on Controller's page? Also change MTU into 1450 or any smaller number. By the way, what is the internet dail up way, is PPPOE or Dynamic IP?

@dagoosemusic Hi there has beta firmware on this topic, you can have a try. https://community.tp-link.com/en/business/forum/topic/265390

@Gerasimos This router cannot support open VPN. The UDP protocol supports the connection from behind the NAT device. It is not a web-based VPN software, nor does it work with Compatible with IPsec...