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post #11 of 12
You modem is only assigning a single IP address..

If you hook the computer that is not working directly to the modem - and then reset the modem (power off for 10 seconds, power on) - it will probably work.

What you want is a router - not a hub.

In basic terms, a router will pick up the IP assigned by your ISP to your modem. And then most routers you can hook up 4 computers (and often also wireless).. The router on the internal network acts like a DHCP server - it will assigned IP numbers to computers that connect to it - and then autoforward your internet traffic (else known as NAT.) But to your ISP, you are only using a single ISP.

You can also get them with firewalls and other bells and whistles.

In your current configuration, if your ISP only allows you a single IP address, your hub is nothing more than a way to have multiple computers hitting the modem at the same time - but only the first one to get there will get an IP number. The modem then caches the MAC address of the computer it gave the IP address to, and basically won't talk to anything else.

That is my guess anyhoo

SO you would have:

Computer1-->Router-->Modem
Computer2-----^

Both computers will get an IP address from the router. THen the router will manage the network traffic forward to your modem and then to the 'net.
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post #12 of 12
Thread Starter 
Quote:
Originally Posted by satansmurf
You modem is only assigning a single IP address..

If you hook the computer that is not working directly to the modem - and then reset the modem (power off for 10 seconds, power on) - it will probably work.

What you want is a router - not a hub.

In basic terms, a router will pick up the IP assigned by your ISP to your modem. And then most routers you can hook up 4 computers (and often also wireless).. The router on the internal network acts like a DHCP server - it will assigned IP numbers to computers that connect to it - and then autoforward your internet traffic (else known as NAT.) But to your ISP, you are only using a single ISP.

You can also get them with firewalls and other bells and whistles.

In your current configuration, if your ISP only allows you a single IP address, your hub is nothing more than a way to have multiple computers hitting the modem at the same time - but only the first one to get there will get an IP number. The modem then caches the MAC address of the computer it gave the IP address to, and basically won't talk to anything else.

That is my guess anyhoo

SO you would have:

Computer1-->Router-->Modem
Computer2-----^

Both computers will get an IP address from the router. THen the router will manage the network traffic forward to your modem and then to the 'net.
That cleared things up a lot.
Thanks satansmurf.
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