The 6.3.1. Balance firmware upgrade mechanism is “Manual Firmware Upgrade”. That works by selecting a “Firmware Image” file on the local computers file system and uploading that file.
Most of the time I am working remote. Where the local upload capacity is limited due to asymmetric bandwidth assignments for most DSL/ADSL/cable/3G/4G/LTE internet access products. The result is that the uploading process takes a long time and during that time the local upload bandwidth is saturated.
As Peplink support already hands out firmware upgrade files by its uri/url location address, f.e. <http://download.peplink.com/firmware/plb310/fw-b210_310_hw2_hw3-6.3.2-build3196.bin>, I do wish to be able to paste that url location into the Web Admin interface.
That saves my local bandwidth, shortens time to download, ,reduces traffic, and just is quicker (in remote) firmware upgrade situations.