Decided to buy GoCoax MA2500D UK plug version from local seller from Carousell and RG6 cables,
Gotten some short 45cm RG6 cables, new 4 way splitter with frequency up to 2400Mhz frequency and termination caps from Shopee.
setup
ONT > Lyra Trio router > MoCA 1 > Coaxial point Living room
Coaxial point Bedroom 1 > MoCA 2 > Lyra Trio node 1
Coaxial point Bedroom 2 > MoCA 3 > Lyra Trio node 2
Now getting similar speed in each room since all the nodes are on wired backhaul instead of being wireless. Previously getting only 50-90mbps in the most remote bedroom on wireless connection and now going up to 300+mbps. Happy on the investment since the adaptors are not cheap. Now time to upgrade the router to better spec and use the Lyra trio as part of the AImesh.
Definitely sounded complicated to setup MoCA system but after reading through this thread and watching some youtube videos on GoCoax, it wasn't as painful. Good option for homes without LAN points but with existing old SCV points.
old splitter found in a separate box below DB
new splitter from Shopee
attached the cables from living room and 3 Bedrooms to splitter. Added termination cap to the 'IN' so no POE required. Outside SCV riser was locked so no access anyway.
fixed the GoCoax adaptor to each room then to each mesh router. Check that the 3 lights are on. ETH light will be blinking when in use.
change the ip address of laptop to log into the Gocoax management web. Phy rates all hitting close to 3500. Probably not necessary to check since the GoCoax are meant to be plug and play.
Use the "
Quick Start Guide for WF-803M" from the GoCoax support page to find out how to log in.