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Business Class Comcast Cable Modem is there a max that the device can handel?

Last Modified: 2012-05-10
This might be an odd question but it related to an issue.

Does Comcast Business Modem have a maximum number of devices that can attach to it.

Ok here is the case. I have the very high speed Comcast Business internet service with a modem SMS modem DOCSIS 3.0

Of couse it has 4 ports for connecting devices on the back. But I have a total of about 20 computers behind the cable modem and about 20 VOIP phones (They are Hosted Voip so the pbx box is not in house).

Two switches make up my network and the modem is connected using one of the ports to one of the switches.

Both switches are gig switches.

All computer devices are plugged into one switch and voip phones are connected to another switch.

So there is one cable from the cable modem to one port on the switch.

Now there is basicly a total of 40 devices. Not much of a firewall but just keep this in mind. Trying to give you all an idea of what's behind the cable mode.

Aparently a tech from comcast one of there advance guys. The ones that the guys in the field correspond with.

Said this today. "Your customer has I see 40 devices connected" not sure what your going to tel him but modems really not design to have that many devices connected behind it. Its quite possiable that that might be part of the issue.

Now my question is this. Is this real? Can a cable modem really only support a certain number of devices behind it?

Oh by the way I'am on a 50 down and 5 up up plan.

Both the tech with me who is cool and very knowledgeable we both looked at each other and with puzzlement. His guy on the phone did have a point. Devices can be over loaded I guess.

I would like to hear others outtake on this.

Also if this is the case what are some of the solutions. NO I 'am not doing T1 or DSL

because the circut in my area are bad even the telephone guys said it wouldn't do any good.

SO my only chose for good internet is comcast

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