I am uploading video using the Pepwave MAX 700, firmware 5.4.7. build 1941, with 3 USB modems with SpeedFusion to bonded the modems. All incoming and outgoing is routed to the Speedfusion link. On the other side I have a Peplink Balance 580 with one WAN port using a symmetric 100Mbps business broadband connection.
When I use 1 4G LTE modem, bandwidth achieved for upload in the region of 4Mbps to 6Mbps.
When I use 2 modems each with different service provider, the 4G LTE modem drops the bandwidth to only 0.5Mbps to 2Mbps.
How can I achieve max bandwidth with each modem?