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Jay Dreyer :: Comcast High Speed Problem

Comcast High Speed Problem

Linksys BEFCMU10 Cable Modem

Comcast increased the speed of our Internet connection to 6 Mbps from 4 Mbps. The upgrade was supposed to happen a few months ago, but some undisclosed technical problem prevented it. About 2 weeks ago Comcast sent out an email notifying me that the increase had gone through and all I needed to do was unplug my cable modem, wait a few seconds, then plug it in. That’s when the trouble started.

After resetting the modem, I jumped out to a few sites that offer broadband speed checks. Time after time my connection speed kept clocking in at under 4 Mbps, actually, it was usually much closer to 3 Mbps than 4. I tried a number of things – keeping the modem unplugged longer, resetting my wireless router, my VOIP router and my switch. Nothing helped.

I searched around the Internet to see if others were having the same problem. You might be thinking, “Why not just give Comcast technical support a call?” If you’re thinking that, you must not have Comcast. Anyway, after multiple Google searches I finally found a forum where people with the Linksys BEFCMU10 cable modem (the one I have) were having the same problem. It turns out that there are different versions of this modem. Mine was version 1, which I guess could not handle the increase in speed. People with version 3 did not have this problem. I went to TigerDirect and ordered a new one for around $60. It turns out the problem I encountered has something to do with DOCSIS 2.0 compatability. I have no idea what that means but evidently my new modem (same model number) takes care of the problem.

After swapping out the modems, resetting my network and giving Comcast a call to update the MAC address, I’m happy to report the speed increase now works. Problems like this are exactly why I tell my Dad to pay the $3/mo and lease the modem from Comcast instead of buying his own. If he has a problem, he can just call Comcast and get a new modem.


| posted 11/18/2005 10:43 AM

Permanent link to this comment  Tim Mercer  on  05/08/2006 11:09 AM  said: 


What are the names of the sites that I can use to check the speed of my service?

I know, I could Google it, but….