Any iMac (10.4.6) users running Comcast high speed internet?

[City Lights]

All was well when I was using my own modem (no router). When I switched to Comcast's modem/router so we could have internet access from multiple machines, I've had trouble with my iMac losing the internet connection. The only way I am able to re-establish the connection is by rebooting. This happens numerous times a day and the time I'm logged on doesn't seem to make any difference. The odd thing is my daughter's iBook, running same version of OS, doesn't have this problem. Ditto for my old iMac running OS 9.?? (latest version of OS 9). Comcast is no help whatsoever. They claim that I'm the only one reporting this problem and believe it's something specific to my Mac. Anybody have a similar experience, or any suggestions for me? Any ideas will be most appreciated. :hi:

[enough]

1. Having a very similar problem --

Not exactly the same, but I will post here hoping that someone will have SOME ideas for us.

Mac OSX 10.3.9.

We Just switched from dial-up to Comcast cable last week. The internet connection works beautifully with the direct cable connection to the single computer. But when we try to connect in a router (Linksys) to wire two more Macs, there is NO connection at all, not even to the original computer that was working before.

We have spent a lot of time on the phone with Linksys, with Comcast, and with Apple, and everyone has lots of advice, but nothing works. In the end, each company concludes that it's someone else's problem.

I would be most grateful for any light that anyone can shed on the whole subject of connecting multiple Macs to high speed internet.

Thanks!

[cadmium]

7. I had the same problem and

after talking with Linksys and Comcast several times nobody knew what to do 2 yrs ago. It worked by trial and error turning things on and off in different order. I dont' know what I did exactly when it finally worked. I have never had that problems since.

[enough]

2. Found a discussion of your problem on MacFixIt.

This is specifically about the connection randomly dropping out. Maybe it will be useful to you.

http://www.macfixitforums.com/php/showflat.php?Cat=&Board=Forum7&Number=760354&page=4&view=collapsed&sb=5&o=31&fpart=1



I'm still looking for general advice on connecting multiple macs with a router (see reply #1)

[City Lights]

3. Thanks for the link.

Unfortunately, my connection never re-establishes itself on its own. I must reboot the Mac, which sucks. I'll look through the macfixitforms later. If I can't find any other information, I'll post my problem there. :-)

[City Lights]

4. Well, I think I may have "solved" my problem.

My husband and I were trying to see what differences exist between our daughter's iBook, my old iMac, and my new one. We realized my iMac is running Norton's firewall. I disabled it this morning, and haven't had a problem since (it's been almost 4 hours). Too bad the "solution" leaves me vulnerable to hackers. We're trying to determine if the Linksys router has some sort of built-in firewall.

[City Lights]

5. My husband just confirmed with Linksys that their router has

a built-in firewall. They also recommended that firewall software be disable/un-installed on individual computers when using a Linksys router. My husband suggested they remind Comcast of this because my problem could have been solved months ago had Comcast tech support known about this. :mad: :grr: Comcast needs to get a fuckin' clue!

[Downtown Hound]

6. Comcast is evil

They have the worst tech support on the face of the planet. I canceled them because whenever I called them I would always be on hold for at least an hour before getting a person, and it wasn't uncommon for the phone to simply go dead in the middle of a conversation with them.

They suck. Local internet providers are the way to go.