Windows 7 Connecting to Comcast cable modem still nada

pidjones · Aug 16, 2011

Connecting to Comcast cable modem finally fixed!

I am trying to help a lady with Win 7 Home Prem 64 bit on a nice DX4822 Gateway. She had internet connectivity for almost a year, then it faded and stopped. I can connect to the cable modem with no cable connected (not provisioned) and see the web site on it for diags, and can connect through the cable modem with an XP netbook very successfully. Any ideas? I have tried a "clean boot", reloaded the NIC drivers from the latest on the Gateway site, tried a different cable modem, many, many restarts and modem power down and back. Nada. Single computer Linksys cablemodem. Comcast provider. She was on and then her connection faded over months and then nothing. Comcast had a tech on site for three hours one day - nada. He even tried another modem - nada. This is my first experience with Win 7 and honestly, I may consider a (choke) Mac running XP in a VM if I don't find a simple solution. I figure: NIC is OK because it connects to the modem and sees the web pages in it as long as it is not connected to the cable and provisioned. It also gets everything (IP address, DNS, etc) but WINS server when connected, but will not connect to the internet. Then, if I connect my XP netbook to the cablemodem and cycle the power on it, I get on the network easy with it. So???

pidjones · Aug 23, 2011

Re: Connecting to Comcast cable modem FIXED!!

Thanks for guiding me in the troubleshooting - in particular the help that Trouble provided. Today the plan was to first try putting my router between her and the modem, but when I got there I realized that I had forgotten the Cat5 cables for that connection. Luckily I had stumbled across a Dlink NIC in a locker at work while looking for something else. I checked the Microsoft site and found that it was Win 7 compatible, so took it with me. Since I had forgotten the cables, I tried installing the NIC, disabling the onboard NIC as it booted back up, and it popped right on the net. I'll leave it in her computer and buy another to replace the one I borrowed from work. I may go ahead...

pidjones · Aug 22, 2011

Trouble said:
The words, I told you so, come to mind.
As a comcast customer myself, I've had my own experiences with them and their particular brand of support. But pretty much if the technician's laptop will connect, then you're pretty much on your own.
Likely to be a NIC -> Modem interop issue.
Does she have the same modem as your's at your place? I assume not since it worked at your place and doesn't at her's.
So possibly a generic mainstream NIC 10/100 maybe stay away from the Gigs.

Yeah, but I had hopes the guy would actually check their end. She was on this same connection with the same computer for almost a year. I took my own modem to her house yesterday, and her computer would not connect through it there, even though it would at my house. So, no modem/NIC problem. I suspect (and hope for) NIC/Comcast problem which should be defeated by either a router between them or a new NIC. BTW, I can't find any non-Gig NICs around here that have Win 7 drivers. I'll just pick up the Network Everywhere GA311 from Staples - it's less than 30 bucks, tax included. If the router doesn't fix it, that is. A router would help her security. eBay is full of old Linksys (Cisco) 4 port wired routers for <20 bucks shipping included.

pidjones · Aug 23, 2011

Re: Connecting to Comcast cable modem FIXED!!

Thanks for guiding me in the troubleshooting - in particular the help that Trouble provided. Today the plan was to first try putting my router between her and the modem, but when I got there I realized that I had forgotten the Cat5 cables for that connection. Luckily I had stumbled across a Dlink NIC in a locker at work while looking for something else. I checked the Microsoft site and found that it was Win 7 compatible, so took it with me. Since I had forgotten the cables, I tried installing the NIC, disabling the onboard NIC as it booted back up, and it popped right on the net. I'll leave it in her computer and buy another to replace the one I borrowed from work. I may go ahead and get her a wired router, too - for security's sake.

Trouble · Aug 23, 2011

Re: Connecting to Comcast cable modem FIXED!!

Great work. Glad you were finally able to resolve her problem for her and thanks for posting back and updating your thread.
Thanks for joining our community and sharing this issue with us it was interesting to say the least. Now all I have to do is remember that NIC for future reference in trouble shooting issues with Comcast Modems.
We hope to continue to see you around the forums
Regards
Randy

Windows 7 Connecting to Comcast cable modem still nada

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