Scenario: You have your old gateway (modem-router) and you want to use your new router for WiFi connectivity instead of the old one. However, you still want the gateway connected as a modem only.

Solution: Turn OFF the WiFi of your old gateway.

NOTES:  

• Turning OFF the WiFi on a router or gateway depends on either the device model or the internet service provider (ISP).
• Make sure to turn OFF the radio band (2.4 GHz or 5 GHz) and not just the SSID broadcast of your router or gateway.

Click on the links below for instructions that apply to you. If your device manufacturer or ISP is not on this list, contact your device’s support center for further assistance.

How to turn OFF WiFi (ISP-related instructions)
 

• AT&T
• Comcast
• Spectrum - Time Warner
• Verizon
• Cox
• Century Link

How to turn OFF WiFi (manufacturer-related instructions)

• Linksys
• Apple Airport Time Capsule or Airport Extreme
• ASUS
• D-Link
• NETGEAR
• Motorola
• TP-LINK