[jorvi]

You can also call your ISP to put the modem-router in bridge mode. This will basically turn off all of its features and just have it pipe internet access from its LAN ports. If you do this, remember to go ISP router LAN port > personal router WAN port, as you won't be protected by the ISP router firewall anymore.

[AzzieElbab]

Good suggestions. Thank you. I have done something similar before. Only problem is, I had to revert the setup each time isp had hiccups otherwise they refused to provide any support