Ultimately my goal is to use DSL 1 + DSL 2 + LTE (for upload speed when needed) using WAN 1, WAN 2, and WAN 3.
Right now, it seems the highest performance way for me to do this is to physically plug in the LTE wan when I need to upload something really large, and physically unplug it when I don’t. (if I leave the LTE active, ping times go from steady 30ms when doing low-bandwidth activities or browsing to variable between 30 and 100 ms so the connection doesn’t feel as quick. Plus I’d rather not pay for metered LTE banwdith when it’s not adding to the speed but actually making it feel slower during regular browsing or small emails for example. But it sure is nice to have LTE active when uploading a 200 Mb file for example.)
It would be really amazing if there were a way to program the balance or speedfusion to “enable WAN 3 when upload bandwidth > 1 Mbps” or “enable WAN 3 when WAN 1 ping > 100 ms”