Modem to router problem

Siemens Speedstream 4200 multi vc dsl mo...
August 3, 2009 at 18:41:01
Specs: Windows XP
I have a friend that has two computers he is wanting on the internet. So he bought a regular router. He hooked both the computers up to the router and the modem where it should be hooked up. Everything works fine, both systems have the internet no problem.

The problem is that the modem needs to be turned off and turned back on every day or one of the computers is unable to access the internet.

He wants it to be where he doesn't have to turn the modem off everyday for both computers to be able to get on the internet. Is there a setting in the modem backend that needs to be changed in order for this to be accomplished?

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August 3, 2009 at 19:46:32
I am not sure on how to get into the router's backend. It is just a regular wired router, not wireless. I guess it is more of a hub than a router.

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August 4, 2009 at 14:07:09

Can he ever use both computers at the same time on the
internet? If it is just a hub and it is connected to a modem
then the problem may be due to an IP address conflict.

Some modems only provide one IP address so whichever
computer gets it can access the internet. Turning the modem
off resets it. A router can use NAT to create more internal IP
addresses but a hub won't.

Next time it happens do an IPCONFIG /ALL on both
machines. If they have the same IP address, that's the
problem. He'll need to buy a router.

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