Windows 8 and 8.1 Forums


Can't connect to Xfinity Modem with Win8

  1. #1

    Can't connect to Xfinity Modem with Win8


    I just switched to Xfinity and my Win 7 devices and Samsung phone are connecting to the modem just fine, but the Win 8 machine won't connect. The modem is a Technicolor TC8305C. Is this a common problem?
    The Win8 machine is a dual boot and connects fine in Win7 so it definitely seems like a win8 problem.

    P.S. I also have a Netgear Network Extender Model WN3000RP and it connects fine to that (in Win8).

    P.S.S. This is all on Wi-Fi
    Last edited by okrobie; 22 May 2015 at 18:04.

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  2. #2


    N.Y.
    Posts : 2,214
    Windows 10 Pro 64bit


    Hey Jim, you have Comcast ? Look here Configure Windows 8 Network Settings for XFINITY Internet

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  3. #3


    Hi jds63, Thanks for the link. I followed the procedure, but, nothing improved. Talk to you tomorrow. I hafta go to bed now. Bye.
      My System SpecsSystem Spec

  4. #4


    N.Y.
    Posts : 2,214
    Windows 10 Pro 64bit


    Quote Originally Posted by okrobie View Post
    Hi jds63, Thanks for the link. I followed the procedure, but, nothing improved. Talk to you tomorrow. I hafta go to bed now. Bye.
    YW, how are you connecting to Windows 8.1 PC ethernet (wired)? What did you use originally(router, modem) for this PC ? Comcast the internet provider ? May need to contact them.
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  5. #5


    Central IL
    Posts : 3,468
    Linux Mint 17.2


    You really do not have to do anything special. The problem is that Gateway has been recalled by Comcast, because of problems with it. Unless you have Digital Phone Service with Comcast. I would suggest just getting a decent Wireless Access point, and buy a Motorola/Arris 6412 modem. You can check on best rated Wireless Router/Gateways at smallnetbuilder.com.

    I originally had the 6412 modem, a Cisco RV320, which I am still using, and a Engenius ECB350, with POE injector, for my main Access point to the router.
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  6. #6


    Hi jds63 and broe23, the problem is solved. I called Comcast (Xfinity) support and it was something silly on my part. I had to delete the modem from the list of network devices and then re-install it using the gateway password and it was online. I have found that you are correct broe23. The Technicolor TC8305C is a notorious POS, but I'm stuck with it due to budgetary issues, and for my purposes it is working well now.
    Thanks guy's, Jim
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  7. #7


    N.Y.
    Posts : 2,214
    Windows 10 Pro 64bit


    Quote Originally Posted by okrobie View Post
    Hi jds63 and broe23, the problem is solved. I called Comcast (Xfinity) support and it was something silly on my part. I had to delete the modem from the list of network devices and then re-install it using the gateway password and it was online. I have found that you are correct broe23. The Technicolor TC8305C is a notorious POS, but I'm stuck with it due to budgetary issues, and for my purposes it is working well now.
    Thanks guy's, Jim
    Glad you solved it ! Easiest solution call your provider as you pay for service regardless buying your own modem.
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  8. #8


    Central IL
    Posts : 3,468
    Linux Mint 17.2


    You can actually get a decent modem & Wireless Router pretty cheap. Especially if you look around on Newegg. I still have my 6412 and Wired Trendnet router waiting for someone that needs it. You would just need an Access Point, which would run you around $30. After I get tired of hanging on to old stuff, I just pass it along to someone looking for replacement equipment. Most just goes to my Brother, so he can have it for clients.
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  9. #9


    A little followup on this saga... I noticed some speed problems so I called Xfinity support. Naturally they needed the MAC address and serial number of my modem. When they put it into their computer it came up as a rented modem that was assigned to another party. They said no problem, just take it to the local Xfinity office and they would just re-assign it to me. Well when I got to the Xfinity office they checked it out and confiscated the modem. They said I could have it back if I would pay them $10.00 per month. I said if im going to pay $10.00 I wanted a better modem. I wasn't going to pay rent on the Technicolor POS. So they gave me a brand new SMC. I immediately called eBay and told them the story and they agreed to refund al of my money from the purchase of the Technicolor. So I was trying to avoid the rent on the modem and I wound up paying it after all. Oh well... it's one day at a time. Hope you get a laugh out of this. I sure did.
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  10. #10


    Central IL
    Posts : 3,468
    Linux Mint 17.2


    IPv6 is the major issue with speeds for Comcast. One you uncheck it in the network adapter, you should get back to real speeds.
      My System SpecsSystem Spec

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