NetFixer
Freedom is NOT Free
Premium
join:2004-06-24
Murfreesboro, TN
 ·AT&T Southeast
 ·Vonage
 ·Cingular Wireless
·AT&T CallVantage
| reply to Oregonian
Re: [Wired] WRT54G V3 not synching with Cable Modem
said by Oregonian  :That's how it has always worked for me on Comcast. My Comcast service is tied to the MAC address of my PC so I have to clone that address in the router to get Comcast to accept it. I don't think it was a duplicate MAC address, I think that Comcast only wants to see one MAC address per account. Of course, you can always call them up and change the MAC address for your account, if needed. The official rule is one cable modem MAC address and one CPE MAC address at any given time (unless you are paying for multiple public IP addresses). If you power cycle your modem with the new device attached, you should be able to connect any single device at a time to the modem. You should only need to call Comcast to register a new cable modem MAC address, not a CPE MAC address. I do not have a way to test a Comcast connection at the moment, but that procedure has been in effect for several years for most if not all US cable ISPs.
I only mentioned that perhaps there might be a change brewing because in the dark past, it was a fairly common cable ISP practice to prohibit the use of NAT routers unless you purchased the router from the ISP. I have see several recent reports that perhaps Comcast and RR were beginning to discriminate against user supplied routers again, but that is only unverified anecdotal evidence.
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A well-regulated militia, being necessary to the security of a free State, the right of the people to keep and bear arms shall not be infringed.
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Oregonian
Premium
join:2000-12-21
West Linn, OR
 ·Comcast
| reply to NetFixer
That's how it has always worked for me on Comcast. My Comcast service is tied to the MAC address of my PC so I have to clone that address in the router to get Comcast to accept it. I don't think it was a duplicate MAC address, I think that Comcast only wants to see one MAC address per account. Of course, you can always call them up and change the MAC address for your account, if needed. |
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NetFixer
Freedom is NOT Free
Premium
join:2004-06-24
Murfreesboro, TN
·AT&T Southeast
·Vonage
·Cingular Wireless
·AT&T CallVantage
| reply to mrredskin
said by mrredskin :
NetFixer, I cloned the PC Mac address and it worked great! Thanks for your help! Hope you came away unscathed from all those storms you guys had over in middle TN a month or so ago!
Glad to hear you got it working. However, this may not bode well for Comcast customers in general. It used to be a common practice for cable internet suppliers to reject the MAC addresses of routers, but in recent years that practice has been dropped. I have to wonder if your problem was a fluke caused by a duplicate MAC address in the Comcast database, or if they are implementing a router ban again.
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A well-regulated militia, being necessary to the security of a free State, the right of the people to keep and bear arms shall not be infringed.
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»nature-pics.com |
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mrredskin
@comcast.net | reply to NetFixer
NetFixer, I cloned the PC Mac address and it worked great! Thanks for your help! Hope you came away unscathed from all those storms you guys had over in middle TN a month or so ago! |
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mrredskin
@tva.gov
| reply to NetFixer
Haven't tried cloning, yet. Cables are fine. And, yes, I can access the router's interface. Won't be able to try any of this for about 12 hours since I'm at work now :/ Thanks for the quick response. Will try this as soon as I can this evening. |
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NetFixer
Freedom is NOT Free
Premium
join:2004-06-24
Murfreesboro, TN
·AT&T Southeast
·Vonage
·Cingular Wireless
·AT&T CallVantage
| reply to mrredskin
Have you tried cloning your PC's MAC address into the router's WAN interface? If your PC works when connected directly, and there is nothing wrong with the router's WAN interface (and the connecting cable), then the cable modem and Comcast should then think that you are only using your PC, and your connection might work. If that does not help, then there is probably a problem with either your router's WAN interface, or the connecting cable.
Can you access the modem's maintenance interface at »192.168.100.1 from the PC when you are using the router?
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A well-regulated militia, being necessary to the security of a free State, the right of the people to keep and bear arms shall not be infringed.
»portscan.dcs-net.net
»nature-pics.com |
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mrredskin
@comcast.net
|  I flashed my router with tomato v 1.19 many months ago and have recently moved to a house from my apt. Of course, I had to have the internet connection transferred to my new residence, and since then my Motorola SB5120 and Linksys WRT54G have stopped communicating with each other, it seems. Direct connection from modem to PC is fine. The orange pc/activity light will blink showing connectivity, but when running a cat5 from modem to router, and router to pc, I get nothing from the modem. I just flashed to tomato v 1.25 and that still didn't work. Any suggestions? |
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