Gambit66's profile

Problem Solver

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341 Messages

Thursday, February 22nd, 2024 5:49 PM

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Advanced security and other questions.

So, today had to upgrade my Xfinity modem/router. Which I had in bridge mode and wi-fi disabled, and just used my router. What they replaced it with was the Xfi white cube one. Had to use the app to activate it, went pretty smooth. I was looking to set it up the same as the old one in bridge mode since I have my own Wi-Fi router. While connect to the Xfinity modem/router Wi-Fi I found no bridge mode setting in the app or the modems interface. So, I plugged in my router and it works great with out bridge mode. Now I have 2 Wi-Fi connected devices. My router and the Xfi modem/router. 

Now, as long ago before on here about Xfinity`s Advanced security, I take it`s still not worth activating?

Accepted Solution

Expert

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108.3K Messages

1 year ago

FWIW. If you are hanging 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 will result in an undesirable "double NAT" condition on your home network. 
 
Google "double NAT" for info about its potential pitfalls. It may break some applications.

Problem Solver

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341 Messages

@EG​ I guess what I really need to ask is, since my ASUS RT N66R router is almost 10 years old. Should I buy a new router or use Xfinity`s modem/Wi-Fi-router and chunk mine? Seems to have a good signal. And it looks like its dual band 2.4/5.0 work as one.

Expert

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108.3K Messages

1 year ago

Why rent their combo device at all when you are only using part of it ? Consider purchasing a compatible straight cable modem at retail to use with a good stand-alone router and save the rental fee. It will pay for itself in fairly short order.

Problem Solver

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341 Messages

@EG​ I put the modem in bridge mode, and now it`s all as was before. I can see your point on owning it all, but one time we had lightning strike a tree out front and only fried the modem. Got it replaced for free. 

Still confused on their modem/Wi-Fi router.  You have to log into the modem itself to add mac address filters. Didn't see that option on their app. So now I`ll just keep theirs in bridge mode with my old router. I wonder if my older router is slowing me down any?

Expert

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108.3K Messages

1 year ago

Do a hardwired (not WiFi) speed test with the router in the mix and then do another test hardwired directly to their gateway and compare the results. A ten-year-old router is a bit long in the tooth, but it also depends on which speed tier you are subscribed to.

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