I'm delighted with my 8924. After much research here I decided to replace my Homehub 5A with an 8924 I found on Amazon marketplace. The Homehub never synced at much above 50MBit on my Infinity 2 package even though I suspected the line should have been capable of more and I'm on a Huawei cabinet.
Got the 8924 installed and the attainable jumped to over 60Mbit, though was still syncing at around 54MBit, with high interleaving (pings around 30ms to uk servers). After a week the interleaving dropped and pings were around 25ms. Averaging around 100ES per day with no resyncs at all. Then today, after around 2 weeks installed, DLM was favourable and has activated G.INP. Now I'm syncing at over 60MBit and have pings of around 17ms! Also in the last 8 hours since the resync I've only had 2ES, so thats dropped dramatically!
Running the new firmware 13C0 and had run 12C0 since I installed it. Always getting a lot of FECs as previously reported but it doesn't seem to have any effect on link stability and I've never had a resync other than DLM changing the profile.
============================================================================
VDSL Training Status: Showtime
Mode: VDSL2 Annex B
VDSL Profile: Profile 17a
G.Vector: Disable
Traffic Type: PTM Mode
Link Uptime: 0 day: 7 hours: 33 minutes
============================================================================
VDSL Port Details Upstream Downstream
Line Rate: 18.910 Mbps 60.676 Mbps
Actual Net Data Rate: 18.876 Mbps 60.677 Mbps
Trellis Coding: ON ON
SNR Margin: 6.1 dB 6.6 dB
Actual Delay: 0 ms 0 ms
Transmit Power: 7.4 dBm 12.5 dBm
Receive Power: -5.1 dBm -8.0 dBm
Actual INP: 0.0 symbols 48.0 symbols
Total Attenuation: 12.5 dB 20.5 dB
Attainable Net Data Rate: 18.899 Mbps 63.065 Mbps