I just updated my Zyxel VMG1312-B10D to the current firmware, v5.13(AAXA.7)C0, released in December.
Now, on logging in to the box with telnet or ssh, I find the available commands no longer include "xdslctl" or any of the other common adsl commands. Consequently, when DSLstats logs in and executes "xdslctl info --stats", it gets back no data.
Nor does there seem to be any way to invoke a shell that might make other commands available. This change to the firmware was not documented in the release notes and there appears to be no CLI reference manual available either.
One other user has encountered the same behaviour and has posted at
https://homeforum.zyxel.com/ without getting a useful reply.
I have opened a support ticket with Zyxel and we'll see if that produces anything. Meanwhile, does anyone here know how to make the VMG1312-B10D work again with DSLstats?