By way of an update, having discovered that these units run an older, tailored version of the opnwrt routing system, rather than simply bin the router, I uploaded the latest version of opnwrt to it....

We're using an FTTP line as a backup to the leased line with an ER605 purchased to handle the PPPoE aspect of the former before handing traffic over to the main router and I'm astonished to find that...