Just added a 130 as a VDSL modem to my Draytek 2925.

Apparently I should be able to see the sync speed in connections but nothing is showing there, just the bytes sent / received etc.

I've set the 130 to broadcast the router stats to the LAN.

What am I missing?

I have the same configuration, and I see the details listed at the bottom of the Online Status | Physical Connection (menu item) screen on my 2925

Remote VDSL2 Information From WAN 1 (VDSL2 Firmware Version: 05-07-06-0D-01-07 )
Profile State UP Speed Down Speed SNR Upstream SNR Downstream
17A SHOWTIME 9995 (Kbps) 39993 (Kbps) 18(0.1dB) 18(0.1dB)

Cant believe this is still an issue with firmware, by any chance do you have all the DOS defence boxes ticked, one of them blocks the stats - fraggle attack I think it was.
Sorry cant try myself Ive moved away from Draytek modem.

Yep, Is Fraggle attack - just unchecked it and proved it; I now I can see my V120 stats for WAN2!

Same here - works a treat now