cant add other computer to the network?

S

scjeff05

New Member
Hi, i have a network setup that is working good and I wanted to add
another computer. This is where my problem starts.


I have a DSL modem, with a router attached to it. Attached to the
router are 4 PC’s,
XP, XP, XP, and 98. All these computers can see and talk to each other
but now I
want to add another computer. Since all the ports (4) are taken up on
my router
I tried to attach this 5th computer to my modem, which also has 4
ports. But the
computers connected to the router (which is connected to the DSL modem)
are unable
to see that 5th computer. And it cant see them. I was just wondering if there was a way to
set up this
network so the 5th computer can see the files on the other 4. I don’t
want to have
to go out and purchase a new router with more ports if I don’t have to.
I’m more of a visual person so I made a diagram to show my current
network setup.

network.jpg




Thank You,
Jeff
 
Last edited:
The router and modem are probably running on different networks. See what IP DHCP has assigned to the computer that can't access the network, and the see what one of the computers that can access it have. My guess is they'd be in different ranges. If this is the case, the easiest solution would probably be to simply manually enter another IP in the "modem" PC. If not, I know just adding a hub/switch to the router would work as well :P
 
Make sure they are both on the same subnet (255.255.255.0) and in the same workgroup. As mentioned, make sure that the IP range is both either 192.168.0.xxx, 192.168.1.xxx, 10.0.0.xxx or 172.16.0.xxx.
 
ok, the subnet is 255.255.255.0 and they are all in the same workgroup. The IP gateway on the modem is 192.168.2.1, the one on the router is 192.168.1.4. However when i set them both the same, it seems to make the router go offline and i loose internet and network to all the computers connected to the router. Any ideas?

thanks for your help!
 
Your router is acting as a DHCP server, so probably you are not on the same network. In all honesty, this could be very easily sovled by going out and buying a 20 dollar 5 port Switch at your local computer store. Patch one of the data ports on your router into the uplink port of the 5 port switch then you will have three more ethernet ports to hook machines up to. Do note that either port 1 or port 4 will be shared with the uplink port, so if the uplink port is in use you lose the other port it is shared with.
 
Ok.. You don't have to buy anything, just pay attention to this:

Disable one of the DHCP servers. Either on your modem or on your router, but preferably on the router.

Next, jump the router to 192.168.2.2, subnet mask 255.255.255.0, default gateway 192.168.2.1. Make the DNS server 192.168.2.1 with the secondary 4.2.2.2

Now you have a couple of options. You can put the computers on Auto, or you can manually enter the IP. If you manually enter it, you will want 192.168.2.100-192.168.2.105 with the DNS server the same as the router settings.
 
thanks everyone for your help. i made a mistake in my IP addresses and i think this is what is messing me up. The IP gateway for the router is 192.168.2.1, and the one for the modem is 192.168.1.254. So what would that make the new settings be at? Sorry for the mistake.

Thanks for your help!
 
Thanks for the helpful information, unfortunately for me I still can’t get it to work. Probably something that I’m doing wrong but here is what’s happening, whenever I go into the router settings to make the necessary changes, it will only let me disable the DHCP Server and make the changes to the DNS. If I try and change the IP to 192.168.2.2 it will just sits there, acts like its loading then display the “page cannot be displayed” screen. And at that point the connection goes to “limited or no connectivity”, basically it assigns some random IP, and won’t assign a Gateway, DHCP, or DNS. It will connect to the internet (but not show other computers on the network) with just the DHCP disabled. Hopefully I explained that clearly… anyways, it looks like it might be just simpler and less time consuming to just go and purchase a switch to connect to the DSL modem. :(

Nevertheless ill just put all the information I can about the modem and the router, incase anyone has any ideas.

MODEM:
Cayman 3546 WAN: ADSL LAN: 4-port Switch
IP : 192.168.1.254
Netmask : 255.255.255.0
DNS-1 : 68.94.156.1
DNS-2 : 68.94.157.1
Dynamic
WAN IP : 192.168.1.2


Router:
Belkin 802.11b Wireless Router
IP 192.168.2.1
Subnet 255.255.255.0


Thanks again for taking the time to help me.

Jeff
 
Yup, I know exactly what it's doing. I've seen that several times before, especially with D-link. When you change the IP, the browser loses it's connection. What I do with those heaps of scrap is to set the WAN to static IP, enter the information I gave you, and then plug the cable into the WAN port from the modem.

From there you can have all your computers plugged into the LAN ports.
 
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