LAN Connectivity between Cox Modem my router failure
So we just upgraded our cox service from 300mbps modem to 500mbps trash can modem that has what appears to be 2 LAN ports to provide further external capabilities. I have COX Homelife plugged in one port and my Archer A7 Router plugged in the other which gives me extra LAN ports to plug more external devices like laptops etc. Well the connection is good but seems to drop connectivity randomly. So I reset the modem and things will go good for hours and the next day the wired connectivity seems to drop again and I have to reset cox modem or what seems to work is just disconnecting my router, reset my router, plug back into COX modem and like I mentioned it would work for hours and then drop for what ever reason. Me and my son have gone into the admin setting of the new cox cable modem to see if there's something we are missing and nothing stands out. My router supports gigabit and we are using CAT 6 cable between the Cox Modem and my router so I think it can support but connectivity drops at least once a day. Help!!