FC13 / KDE-4

I cannot get a Linksys WRT54G with DD-WRT or a Linksys WRT160N to connect to a Arris TM602G/CT Modem.

1. I have called Comcast and they swear that the connection is not registered to my PC MAC address.

2. I cloned the PC mac address in my DD-WRT/Router.

3. I have pulled the battery out of the Cable Modem , reset, disconnected power cord and ethernet cable and wait 1 minute before plugging modem back in.
And put in ethernet cable and powered modem back up.

4. I then powered up the Router and reset it and I get no WAN IP addresses in router.
PC connects to router and I can login to router and check settings, No WAN Ip's in router.
I also Cloned the PC Mac address in Router .

5. I know for sure that the WRT54G is working because I have already had it connect to this Modem, but I had to move everything to a different room.

6. I know the Ethernet Cable is okay because, I can remove it from router and plug it directly into PC, and reboot PC and I have a Internet Connection, without having to pull the power plug on Modem
The ethernet cable is 25 ft. long because the Modem is up stairs and I can't relocate it , but that should not be a problem.

Doesn't really seem like this is a Fedora question at all (or even a Linux question, for that matter), perhaps you should move this to the Networking forum for better exposure.

Go ahead and move it.

Moved to networking

The Culprit: A 50 ft Cat 5 cable, that couldn't hack it.

It had problems of being routed in and around AC power cable, was just enough to
prevent it from connecting to a Linksys Router, but yet it would connect straight from
the Comcast modem to the Computer.

The Good Guy: I pulled the Cat 5 from its install and replace it with a 50 ft. Cat 6 cable and the router
connected the first time and every time.

All I can say is , Cat 6 is my choice from this day on, and I will also try out Cat 7.