It might have been me, because I've done similar.
HG62 is 192.168.1.1, router is 192.168.1.254, DHCP range is 2-253.
As smouty says, all you need now is an Ethernet cable from modem LAN2 to any LAN port of the router.
My broadband basic info/help site - www.robertos.me.uk
| Domains,site and mail hosting - Tsohost
Connection - Plusnet
UnLim Fibre (FTTC). Sync ~ 58.7/14.6Mbps @ 600m. - BQM
"Where talent is a dwarf, self-esteem is a giant."
- Jean-Antoine Petit-Senn.
Allergy information: This post was manufactured in an environment where nuts are present. It may include traces of understatement, litotes and humour.