We could do with seeing the basic line stats, (connection speed, attenuation, noise margin), from his Home Hub.
That may not help too much, but if that can be used as a pure router connecting to the internet through a modem, then if he gets an HG612 off eBay, (not an ECI), and unlocks it if it isn't already we can get really useful information.
My broadband basic info/help site - www.robertos.me.uk
| Domains,site and mail hosting - Tsohost
Connection - Plusnet
UnLim Fibre (FTTC). Sync ~ 56.4/14.5Mbps @ 600m. - IPv4BQM
"Angels can fly because they can take themselves lightly."
- G K Chesterton.