Can you post the connection stats from the hub.
HH6 Advanced settings/technical log.
BT will say wait 10 days for the DLM to do its magic, I'm assuming from you router stats you went live on the 19th you've got another week to wait. Just be patient and keep an eye on it, hopefully you will see an improvement.
But most importantly ... forget speed for now, just leave it alone ... no resets by you. 😉