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mickeyv · Jan 15, 2007, 02:23 AM

Hey I have 4 computers connect to the net using my router I was told to connect another computer I would have to direct connect with ethernet cable anyway I done that and I can share files trough network places but for some reason I cannot acess net on the 5th computer can anyone help me??

cajalat · Jan 15, 2007, 07:54 PM

So I'll assume that you took the 5th computer and directly connected it to computer #4 which has 2 Ethernet ports on it. If that's the case then you need to turn on "Internet Connection Sharing" on Computer #4. This will solve your problem. If my assumption is wrong... can you provide more details as to how exactly your systems are connected?

mickeyv · Jan 15, 2007, 08:09 PM

Originally Posted by mickeyv

Hey i have 4 computers connect to the net using my router i was told to connect another computer i would have to direct connect with ethernet cable anyway i done that and i can share files trough network places but for some reason i cannot acess net on the 5th computer can anyone help me???

Computer no 4 which has the onboard ethernet and additional ethernet card on it won't allow ics active it keeps saying that a duplicate ip address already exists and I don't know how cause the sis ethernet that connects to router is set for obtain auto ip and the ethernet connecting the two pc's has a totally different ethernet the pc's talk to each other and files can be transferred from one to the other but just can not get the internet to share.

cajalat · Jan 16, 2007, 05:12 AM

Before you can use Computer #5 and #4 you need to make #5 DHCP. Then you need to unassign any static address you've given to #4's internal connection (call it LAN connection) so switch it back to DHCP. #4's internet facing connection is the WAN in this case. Then you should be able to turn on ICS. However, I think what's happening is that as soon as you turn on ICS then it wants to assign an IP address block that is already used on the WAN side of #4. So you may have to change the WAN side of #4 IP block to something other than what ICS is trying to assign. If I'm not mistaken ICS wants to use 192.168.0.x.

ScottGem · Jan 16, 2007, 07:32 AM

Why not just get another switch. You can get a 4 port Ethernet switch for under $20. Then connect the switch to the Uplink port of the router and you can now add 3 more devices. You will probably have to move Computer #4 to the switch and then plug in computer #5.

finito · Jan 25, 2007, 05:26 AM

You also need to make sure the cable is a crossover cable.

ScottGem · Jan 25, 2007, 06:49 AM

Comments on this post

mickeyv agrees: thank you Scottgem that is what I have decided to do but I will replace the router with a 6 port ethernet switch instead.

You can't just replace the router. The router provides your DHCP and NAT to connect you to the Internet. A Switch won't do that. You can daisy chain switches easily.