I'm running LEDE 17.01.2 on my Zyxel P-2812-F1. It works fine, except for the VDSL speed.
No matter what firmware or settings I try, I can't get the VDSL working at my subscription speed. It should be working at 30/3 Mbps, but will only get a Data rate of 22/2 Mbps.
I use the VR9 firmware (dsl_vr9_firmware_xdsl-575617_571F11.bin) that my provider also uses on the Zyxel, as they provide this modem with their own firmware to their customers. However, with LEDE, it won't attain maximum speed.
Any idea what I can about it?