Hi Guys, i got my new telstra modem Technicolor TG799vac and am trying to connect my old TG797n V3 to it via a LAN cable to get both extended WiFi rang and deliver and LAN connection to my PC.
I have tried various setups as per google instructions and it has been working periodically but then it drops out and tends to take out the wifi from the new modem as well.
all the intructions i have come across are for different brands of modems.
Anyone have any experience in this 
Thanks for reading