internet problem with comcast cable (please help!)

i just switched from verizon dsl to comcast on monday (was gonna switch to FIOS but was not available on the neighborhood where i live) and cable seems faster than dsl, but it keeps disconnecting. all of the computers in my house gets disconnected from the internet at the same time, so i dont think my computer is the issue. does anyone know how to fix this issue? or should i just call comcast?

there is the box thingy where the cable line and phone is connected to and a netgear router is connected to the box thingy also. i dont know too much about it because im used to the dsl router having the router built-in.

 

If all are going down at the same time, it the cable, maybe lease time expiring and renewing. Comcast uses mac filtering. Make sure you clone the mac address of the pc into the router if it was out of the circuit when you setup the account. When I was with them they had a 4 day lease time. If cloning your MAC address does not do it, give them a call. By the way, they will bump you off if you use to much bandwidth. Remember cable is like a party line, the more users on it the slower it gets.

 

I had similar problems, and after three months of troubleshooting (and three days of no internet near the end)...I switched to Verizon DSL.

I had similar problems at my previous two residences (and I was dumb enough to give Comcast another shot)...always had issues.

Its pretty telling when Comcast now regularly airs a commercial that goes like this...
1) Having issues with your internet?
2) All you need to do is power down, and power back up!
3) Power down your computer, your router, and your modem.
4) Wait 60 seconds, and turn on the modem!
5) After another minute, turn on the router if you have one!
6) After those two are sync'ed up, turn on your PC.
7) Its that easy!!!
8) And if you're still having issues...we'll be glad to speak with you.
9) Just call 1-800-999-1...

(Commercial ends without giving out the full phone number)

That says a lot in my book, that means they're having enough issues its cheaper to hide the problem and run advertisements on how to temporarily fix the issue. Rather than have IT actually fix it, and have us bombard CS with "I cannot connect" calls!

 

It could be a signal strength problem. Ask Comcast to send a service guy out and check it. They will probably want you to do a bunch of tests yourself first like plunging your box thingy in and stuff first. I had that problem before when someone down the street damaged the cable putting in a sprinkler system. It workedd, but the signal was so low it cut off several times a week.

keep in mind that Comcast is pretty much the absolute worst customer service company on the planet, so try to have some patience. If they cannot help you within a reasonable length of time, just call back and select the cancel service option. That will connect you to the competent support center. I am always amazed how much better comcast is when they know you are willing to leave.