About a month ago, I received a notice in the mail from my ISP, Insight, with news that they had been bought-out by Comcast. They promised that there would be no changes in my service and the transition would be seemless. Everything would work as it had, except they would charge a little bit more. Great.
They’re in the midst of transferring services to Comcast, set to be complete sometime in April. Everything was fine on our end until our internet went out a few days ago. After a few hours of toying with it, I decided it had to be Comcast’s issue. I tried rebooting the router, renewing the IP, and even connecting my computer directly to the modem– nothing worked.
Finally, I called Comcast and talked to one of their “specialists” from Indiana (better than India, right?). He dialed into the modem, and was able to get a computer hooked up through the modem, but still not through the router. We made an appointment to have somebody come out.
Two days later, somebody from Comcast came out and tinkered with things for about an hour. With all of the toys in his magic bag, he still couldn’t get the router working. Moreover, we were able to hook up a different router, and that one worked. We chalked it up as a faulty router, and he was on his way. But something was still fishy.
We bought the router about 5 months ago, and everything had been working on it perfectly. I installed the DD-WRT firmwire for even more control. Everything looked good on it, except we couldn’t get an IP from the modem. After doing a little research, it seems that Comcast has some trouble with DD-WRT routers. The solution was to change the router’s MAC address from the default DD-WRT address to something else. Many users clone their laptop’s MAC, but I used one from an older router. A quick reboot afterwards, and we’re back up.
It’s hard to say whether it’s an incompatibility issue, or Comcast is actively blocking this alternative firmware. I’ve generally had bad experiences with Comcast, so I choose to believe the latter. Anyway, I’m glad we got things worked out, because I wasn’t too excited about going through the warranty process with Linksys either.