Bonded Multi-WAN will not work - Migrating from TP-Link ER-605 to OPNsense

[ahazi]

I used TP-Link ER-605 for 3+ years and received excellent downlink bonded performance out of my two 500/500 Frontier fiber connection. About 900 Mb/s download and 500 upload against speedtest.com.

I tried different Multi-WAN load balancing configurations with OPNsense but can only get 500/500 Mb/s speed. Is anyone able to get a download speed increase with OPNsense like I did get with ER-605?

OPNsense seems far better in usability, performance and features compared to ER-605 but how do I get proper Multi-WAN bonding if at all possible?