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Changing bridge setting cuts off internet

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New Poster

Changing bridge setting cuts off internet

I have a DPC3941. Newly set up. I prefer to operate it without the WiFi on, and only turn it on when company comes. I can log into the router, and access the bridge. If I enable the bridge, to turn off the WiFi, I lose internet connection. And I also lose my connection to the modem. That is annoying, to say the least.  I then have to do a reset to gain access to the modem again.  

    Is that normal to lose internet functionality when I change the bridge setting?

  

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New Poster

Re: Changing bridge setting cuts off internet

This video says that if I turn on bridge mode that the unit only operates as a modem, and that I have to have a router also. 

1. Is that correct?

2. What routers might work? Any special requirements?

3. If I turn the WiFi back on, can I leave the router in place?

 

https://www.youtube.com/watch?v=hU_glXRkSb0

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Silver Problem Solver

Re: Changing bridge setting cuts off internet

Yes it's normal for the gateway to reset when putting it in bridge mode. (the router should be connected to port 1 on that device).

https://www.xfinity.com/support/articles/wireless-gateway-enable-disable-bridge-mode

 

Just about any router will work.

 

You can disable bridge mode and use the router in AP mode, with the routers DHCP disabled.

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Expert

Re: Changing bridge setting cuts off internet


@liometopum wrote:

 

3. If I turn the WiFi back on, can I leave the router in place?


FWIW, if you hang a stand-alone / separate router off of the gateway device, and the gateway is not in *bridge mode*, you are cascading 2 routing devices which results in an undesirable "double NAT" condition on your home network.

Google "double NAT" for info about its potential pitfalls.




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