Windows 10: bridging gateway

Hello
I have a gateway with Xfinity written on it by Comcast. if I click on "bridge" and disable wireless can I then install my Belkin N 300?
If so I assume I must change the password in my WiFi devices like my laptop and phone?
I am trying to gain a bit more security and speed instead of their gateway.
Is there anything else and is it a wise move? I assume the reverse is obvious if it doesn't work out. I hpe I do not need a signal from comcast or am doing something illegal.
Thank you

:)

 

No connectivity to the internet, error message "The internet between your router, or modem is broken."

I used every troubleshooter you said before I asked for help. My desktop that was working on the connected network was working fine till the laptop tried to use the bridged connection for Internet instead of the wifi. Unless it's supposed to do that. The
hosting laptop will not show a local area connection either for me to bridge. So I bridged my wifi to the Ethernet port and manually typed the IP address and DNS server and default gateway. But then the default gateway in my command prompt disappeared and
changed the IP address and the DNS server on the hosting laptop.

 

Windows 10 update error: "There were some problems installing updates, but we'll try again later" error code: 0x8024402f

For those that use Comcast I discovered that having a Comcast gateway/modem/router set to bridge mode was causing Defender and Update to fail. Once I reset the Comcast gateway to the default mode updates started flowing again.

 

If this will help anyone,I successfully installed my router instead of the gateway router by Comcast.
Click to enable bridging then plug the printer, PC ethernet cable and an ethernet cable from gateway #1 port to the top port of your router. Then instead of 10.0.0.1 use 192.168.2.1[or ping your address- ipconfig] and use your router. Use WPA2 etc. and a password and key(written down). If I can be of help let me know and I hope this helps.
This way noone will snoop on you.