Those are attainable rates. Line will sync in line with the profile - 330/50 Mbps max.
Yes, I know.
I was trying to indicate they my line sync should be at the maximum 330/50 because there's some headroom. I'm the only G.fast user on my cabinet, or perhaps more accurately, I was the first G.fast user on my cabinet, so there shouldn't be any issues with interference (although it should have vectoring to take care of this anyway).
I'm with Zen, also sync'd at the full 330/50. I get approx. 293 Mbps downstream in speedtests. Line data shows sync rate at approx 313 Mbps. Line rate data hasn't updated sinc earlier this month, though I don't think either of us have a stuck profile; I don't think things will change for you.
Your speedtest is in line with mine. I was expecting my IP Profile would be around 319.44, (96.4% of 330), rather than the 303077 Kbps that Zen shows. They also indicate my sync rate is 313110, rather than 330000, which is what prompted my original question.
You do have the option of buying your own hardware! Zyxel XMG3927-B50A certainly recommended.
I know. But G.fast modems (I don't need a router, I have a Netgear Orbi wireless setup) are as rare as hen's teeth. Ones that do stats are even rarer! I'm holding out hope for the Draytek V166.
Thanks for your responses, it does seem as though my line is in the right ball park area, performance wise.