Since my previously poor line connection to the local cabinet was finally fixed last year I have had a very stable and consistent download sync of 39Mbps with a typical s/n level of 8.3dB.
On July 2nd my Hub One was updated to Software version 188.8.131.52.83.8.289.1.1 (30/06/21) and since then my download sync has fallen to 28Mbps and the SNR 7.6dB.
I have tried several reboots and disconnect/reconnect cycles but there is no change to the sync speed which is now below my minimum guaranteed speed of 30.9Mbps. So what is going on?
Fixed! Go to the fix.