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  Netgear router only allows 1 internet connection at a time 
 
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Suspended User May 09, 2007, 04:09pm EDT Reply - Quote - Report Abuse
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I signed up for Time Warner cable internet a while back. i need to split the connection for 3 computers, my desktop, my laptop, and my roomates desktop. i ran the COAX cable into my Linksys BEFCMU10 cable modem, and the the CAT6 cable into a netgear hub. i can get the internet to work on any one of the 3 computers, but only one computer at a time. if i hook multiple computers to the hub the second or third computers cannot connect. i plug it in and the Local Area connection icon in my taskbar shows that it is plugged in, and it says "Aquiring network address" after sitting here for a a minute or so, it says "Limited or no connectivity." the 2nd computer is not getting the correct IP from the router. it shows that it is connecting to 169.254.xxx.xxx. thats a completly different IP than the 1st computer (whichever one is connected to the network) shows. all 3 computers are set to automatically detect the IP. i dont see why it isnt detecting.

ive tryed rebooting the PCs and unplugging the modem and router. ive tryed endless combinations of "plug this one in, then plug in the 2nd one and reboot it." . ive used 2 seperate Netgear routers (model #s EN104 and FS105) with the same exact result.

i used to have comcast cable internet and i used the netgear FS105 in the same exact manner that im trying to use it here (with the Time Warner service) and it worked fine. i used a different modem though.

i know the NICs and CAT6 cables in all 3 machines are good- any one of them will connect- only 1 at a time though. when i try to connect a 2nd or 3rd computer to the network the get no connection.

any ideas?


________________________________________________________

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ASUS P5N-e SLi 650i
2gb G.Skill HZ 800mhz 4-4-4-12 1T
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May 09, 2007, 04:20pm EDT Reply - Quote - Report Abuse
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Edited: May 09, 2007, 04:28pm EDT

 
>> Re: Netgear router only allows 1 internet connection at a time
The EN104 is a hub and the FS105 is a switch.

Generally, a hub/switch is not a NAT device. That means that when you hook up the first computer to the hub, that computer gets a WAN IP from the modem. (most) Cable modems will only allow one IP at a time, so when you plug in the second computer, it doesn't work.

A NAT device like a router will take the WAN IP for itself, and then assign private LAN IP's to each computer, thus letting you share the connection. That's what you want.

BoT May 09, 2007, 04:35pm EDT Reply - Quote - Report Abuse
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>> Re: Netgear router only allows 1 internet connection at a time
if you have the manual of the router try to find how to access the configuration page.
you usually can tap into it via browser by typing the ip address in.
something like 192.168.0.1 or 192.168.1.1

in the configuration turn off pass thru or route thru or direct connect, something like that.
everybody calles it something else. but what happen is that the router you have passes
thru traffic to your pc. so your pc directly gets the ip address. you want to turn that off and
let the modem handel the ip and route the traffic to your pc's.
by doing so it will also provide each pc with it's own ip address and everybody will be able
to access the internet.

You can either be part of the problem or be part of the solution.
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May 09, 2007, 04:41pm EDT Reply - Quote - Report Abuse
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>> Re: Netgear router only allows 1 internet connection at a time
Here's a dirt-cheap Netgear wireless router that will do what you want:
http://www.newegg.com/Product/Product.aspx?Item=N82E16833122022

And a wired-only router:
http://www.newegg.com/Product/Product.aspx?Item=N82E16833122008

Not sure why the wired costs more ...

May 09, 2007, 04:43pm EDT Reply - Quote - Report Abuse
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>> Re: Netgear router only allows 1 internet connection at a time
bot,

Most modems I've used won't let you assign more than 1 IP ... which is where NAT comes in handy. And even if you can, you can end up being charged for each IP by your ISP.

Also, I've never seen a standalone hub/switch with a web-based interface. :/

Suspended User May 09, 2007, 05:34pm EDT Reply - Quote - Report Abuse
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>> Re: Netgear router only allows 1 internet connection at a time
whats the difference between a switch a hub and a router?

i guess ill have to go buy a router. i dont understand why it wont work now though...i used it just like this in the past. i got a wire from a router, ran it into the FS105, then ran a wire into my laptop and my desktop and both ran the intenet at the same time.

hmm. i guess ill run to Frys and see what theyve got.

________________________________________________________

E6600 @ 2.8 (311x9) 1.17vcore
ASUS P5N-e SLi 650i
2gb G.Skill HZ 800mhz 4-4-4-12 1T
EVGA 8800GTS 320mb
WD 320gb SATA
May 09, 2007, 08:54pm EDT Reply - Quote - Report Abuse
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Edited: May 09, 2007, 09:09pm EDT

 
>> Re: Netgear router only allows 1 internet connection at a time
I explained the difference in my first post ^^^.

The two Netgear devices you have now are not routers, you have one hub and one switch. What's happening now is that each of your computers is trying to get its own WAN IP (internet IP), but the modem is only allowing one WAN IP, so the first computer gets it, and the others are out of luck.

With a router, the single WAN IP will be assigned to the router, and each of your computers will get a private IP (192.168.*.*), so they can all get on the internet. That's NAT. Routers do NAT -- switches/hubs don't.

May 09, 2007, 09:09pm EDT Reply - Quote - Report Abuse
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Edited: May 09, 2007, 09:13pm EDT

 
>> Re: Netgear router only allows 1 internet connection at a time

May 09, 2007, 10:59pm EDT Reply - Quote - Report Abuse
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>> Re: Netgear router only allows 1 internet connection at a time
Jc Hathorn May 09, 2007, 02:34pm PDT
i used it just like this in the past. i got a wire from a router, ran it into the FS105, then ran a wire into my laptop and my desktop and both ran the intenet at the same time.

That's not the way you described it above. In your first post you said it went Modem --> Hub --> PC(s). That won't work for more than one computer with most ISPs/modems.

Here you're saying (modem I assume) --> Router --> Hub --> PC(s). That's different, and should work. The bottom line is that in order to share your internet connection among mutiple PCs without using some crap like Windows ICS, you're going to need a NAT device like a router. Your EN104 and FS105 aren't going to cut it.

I hope this is making at least some sense ... let me know if you need any help. :)

FordGT90Concept May 09, 2007, 11:20pm EDT Reply - Quote - Report Abuse
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>> Re: Netgear router only allows 1 internet connection at a time
Jc Hathorn said:
whats the difference between a switch a hub and a router?

Hub < Unmanaged Switch < Managed Switch < Router

Hubs have serious packet collision and bandwidth issues because only two computers can communicate to each other at a given time. Should only be used when there is no more than two computers communicating at the same time.

Unmanaged switches are essentially an extension on a router. A router still uses it's routing tables to assign IPs. These are far better than hubs.

Managed switches are usually only seen in the business environment. Managed switches, like routers, can be directly configured. They can set up distinct networks internally and perform many security actions.

Routers are made to interface between a local network and a wide network. They usually have a plethora of options but no where near the scalability of managed switches.

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Scott Heslop Jun 20, 2013, 07:14am EDT Reply - Quote - Report Abuse
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>> Re: Netgear router only allows 1 internet connection at a time
Hi, Ive been reading this thread and a lot of this seems to be mostly the issue i am getting. I have a my cable modem going into my (D-LINK) Router which then goes to my computer(s). I receive the same issues as stated above. My first computer picks up my modems IP and Default gateway and has internet access but all other computers connected have limited or no connectivity and receive the IP 169.254.***.**

This was previously working, so i am thinking it may have had something to do with the router as its quite old. I have tried with an alternate router to see if this is the issue, and it comes up with the same issue. So now i am unsure what it could be?

Advise would be much appreciated :)
Scott

Gerritt Aug 06, 2013, 05:54pm EDT Reply - Quote - Report Abuse
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>> Re: Netgear router only allows 1 internet connection at a time
What IP does your "first computer" pick up?
This sounds like you DON'T have DHCP server turned on, on the D-LINK router.
Does your first computer have a static or dynamic IP address?
If it has a dynamic address then you most likely have to go into the D-Link and increase the DHCP Address Pool size from 1 to 4 or 5.

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