Using Peplink Balance 20.
I am balancing between an ADSL line and a 4G connection (over ethernet), using the Overflow algorithm, so the 4G connection is only used when the ADSL line is saturated.
However the Peplink Balance 20 does not overflow to the the 4G properly when the ADSL line is saturated. This seems to be because the router does not take into account that the ADSL line cannot be fully utilized in each direction. For example when uploading at approx 500 kbps on the ADSL line in question, it is almost not capable of downloading anything. So the entire site is without internet until the upload is completed.
I think what is needed for a proper balancing of ADSL lines is that the router should calculate the line utilization based on upload AND download, and then overflow, etc. based on that.
It is very frustrating to have the extra 4G connection unused, while the ADSL line is blocked by a single upload
If I’m missing something here I’d love to hear about it.