04 How To: Swap Comcast Modem With 3rd Party Modem And Activation

Very help full thank you
What modem is that if I may ask

hello, i have a question, do i need to have an ethernet cord connected to something in order to activate my 3rd party modem? I only have a laptop and a phone.

hello its me again :) So im thinking of buying the Nighthawk® DOCSIS® 3.1 2.7Gbps Two-in-One Cable Modem + WiFi 6 Router and Im using this modem to connect to Xfinity, then I wanted to connect a NETGEAR Nighthawk Pro Gaming AC2600 WiFi Router (XR500) to it. Does the modem I connect with Xfinity need to be just a cable modem to connect to my gaming router or can I use the Nighthawk® DOCSIS® 3.1 2.7Gbps Two-in-One Cable Modem + WiFi 6 Router with my gaming router?

an actual tutorial that is helpful and gets to the point thank you

Do you need to hard wire a computer with ethernet? My coax connection is in the living room and our wireless desktops are in other rooms. We would have an Xfinity cable box in the living room next to the modem/router.

does it matter what coax port you plug it into or what kind of ethernet cable you use to setup the modem

Great job! Awesome video! Very helpful!

do you need to have a computer with ethernet capabilities for this? what if I just have the xfinity app?

Great video! For some reason I thought the activation would be more complicated but that's incredibly straight forward.

Great job, thanks for the demonstration.

Thank you!

Thanks for the info after dealing with trying to set up my modem with Xfinity for a couple of hours this got me up and running right away in 10 mins Good Job !!!!!

Thank you!! This is exactly the video I am looking for because I wanted to replace my modem/router combo with my own while keeping the phone service

Thank you! Very helpful to see all the steps.

ATTENTION ALL: New video is coming soon with another modem upgrade plus activation via mobile app!!

So should I understand that the modem/router will work before you report what you're doing to Xfinity? I thought they had to push a button or something.

great video! Thanks

Telephone 1?

Very helpful, thank you

Most helpful.....Thank you !

Thank you.🙏🏽 It was really helpful.

Thanks for sharing! … certainly better than calling them these Days! … Comcast should hire you to do their Installation Videos

What if the router I bought does not have a port for the co ax cable my xfinity router does tho? Is this a problem?

Very nice. Just one thing, though. Why didn't you say what brand and model of modem you were installing? I have the very same service, and it would've been great to know.

You're the best. You've saved me $14 per month!

Nice straight forward video on the modem change task. Was having trouble doing so with new MG7700. Will start over after watching your video.
Thank you.

If I can't get this to work, I will be calling you directly. LOL

What if my computer isn't near my modem?

We dont have a cell phone and they dont offer a call back. Xfinity=Xinternetprovider

Can i call you to comment?

I just swapped my self owned Arris 862 to a Netgear CM2050V. I was hoping it would just swap over and be done with some clicks. I ended up having to use my cellphone, which I recently registered with Comcast, and do the activation that way. It didn't just automatically open the web page and go. I also have a wifi router that complicated things. Once I finally got the modem activated and on line it wasn't connecting to the internet. I had to reboot the modem connected to my computer directly and it went online, then I had to figure out why the wifi router wasn't passing through the internet to my network for a while. I think I had to reset the automatic dns settings and then everything finally started working. If you're just going from the modem directly to the main computer it's a bit easier. Once the network was happy again the phone started working too but nothing just worked at first.
I think you're directions on the video are fine but remember that stuff doesn't always play nice even when it claims to be on line and connected. You might have to reboot your computer and things a few times and double check or change some settings.
For that you will need a cell phone that works with out your cable modem so you can get online and get it started like you did, then be able to search out solutions to the problems you might encounter if it doesn't work first try. For most users the first try like you showed works and nothing else will need to be done 👍

So, actually I was able to use xfinity box on each end of the coax. It worked slick. No activation. Set the second box to bridge mode from admin login 10.0.01 LAN. You will have to change your ethernet adaptor temporarily to make the change. Once that was done, vuola. Internet via 5g wifi. Superfast...too fast. My buddy's galaxy cell phone (J7) apparently has a limit of 55 gbs. My phone connected and downloaded at 140gbs in the same room as his. So I took it out, and put in my actiontec 3000 something or other. I only paid 20 bucks for the actiontec using FB marketplace. Have to say, it was my first time purchasing on marketplace and really worked well. At the end of the day, MoCA saved the day. Can't believe I never heard of it before. Save your xfinity box for moca connecting to a room with poor wifi and no ethernet cable. 1-2-3 and you are hard wired where you never thought you would be. It seems that when I was connecting I got the message that wi-fi connected buy no internet. I was impatient. Waiting 30-45 seconds eventually gave me the internet connection. If you dont know about MoCA, then you need to watch the videos here. Who knew that you could use coax as ethernet? Not me. Every home is USA with coax wall jacks now can have ethernet without going up in the attic or under the house. I have talked to network engineers, and they never heard of MoCA. Best kept secret in the world of networking.

Thank you for this video. I just bought a third party modem router for xfinity. This really will come in handy when the modem router arrives. Thank You.

I tried for hours to set up a new cable modem/ router to save money from Comca$t and they said it wasn't working...It must be Microsoft...! This modem was advertised for Comca$t!
So we had to go back to the rental.....!

Thank you for going through the steps one by one. I just bought a new modem and a new router, and I’ve been procrastinating because I didn’t know how to begin. Your explanation was the clearest one I’ve seen, and now I think I’m ready to give it a try. Thanks again.

Thanks for the demo. It’s the same instructions that came with my new modem, but now seeing it performed eases my mind and I know what to look for.

Great video. Straightforward, no bullshit. Thanks

Does your new modem also operate as a router?

Very cool step by step. any videos on the Night Hawk RAX 120 router?

Thank you for your user friendly video on how to install a third party modem. Something we should have done years ago.

You Rock.

After connecting with the online portal with your PC desktop, did you have to call Comcast with the MAC address and serial number? Thanks.

Thank you ... now, suppose you have a purchased XFINITY modem/router from ebay ... any thoughts ... suggestions ???

so, if i don't have a smart phone i can't get internet??

I knew you were from the Chicago area by how you talk and then I saw the 708 area code and yep! I used to be 312 then 708 now 630. Out of curiosity, did anyone call you? 😂

I tried this but it never went through to xfinity setup. It says I'm connected to wifi but it won't let me go through the internet to activate my new modem.

Good vid, thanks

You deserve a prize for not assuming that the viewer knows anything about the subject. That's the way to create a COMPLETE tutorial : assume the viewer knows NOTHING. Nice work, man !

fellow southside chicago friend

Does this work if you buy a modem and router separately? Do I just plug the router into the modem? Or do I have to activate the router as well?