After 3 days of reading, I am either looking for the wrong thing, or it’s not possible. I have a single office connected with 3 DSL lines and an (occasional) 4g LTE modem. This works great, up to 4.5 (or about 8) Mbps. My problem is on https sites, I am stuck on one (usually DSL) line for a total throughput of 1.5Mbps. Seeing the speedfusion bonding and VPN bonding between multiple peplink routers makes me wonder if there is a solution for me to get to a VPN (that is hopefully hooked to the internet via fiber) and use a bonded connection with all 3 (or 4) lines back to the office. This would let me use full bandwith on my https sites, and also let me combine uploads as well.
Or is there no way to do this?